Common Weakness Enumeration
CWE-331
AllowedInsufficient Entropy
Abstraction: Base · Status: Draft
The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.
227 vulnerabilities reference this CWE, most recent first.
CVE-2026-22698 (GCVE-0-2026-22698)
Vulnerability from cvelistv5 – Published: 2026-01-10 05:17 – Updated: 2026-01-12 16:48
VLAI
EPSS
VEX
Title
RustCrypto SM2-PKE has 32-bit Biased Nonce Vulnerability
Summary
RustCrypto: Elliptic Curves is general purpose Elliptic Curve Cryptography (ECC) support, including types and traits for representing various elliptic curve forms, scalars, points, and public/secret keys composed thereof. In versions 0.14.0-pre.0 and 0.14.0-rc.0, a critical vulnerability exists in the SM2 Public Key Encryption (PKE) implementation where the ephemeral nonce k is generated with severely reduced entropy. A unit mismatch error causes the nonce generation function to request only 32 bits of randomness instead of the expected 256 bits. This reduces the security of the encryption from a 128-bit level to a trivial 16-bit level, allowing a practical attack to recover the nonce k and decrypt any ciphertext given only the public key and ciphertext. This issue has been patched via commit e4f7778.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-12 16:47 UTC
CWE
- CWE-331 - Insufficient Entropy
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/RustCrypto/elliptic-curves/sec… | x_refsource_CONFIRM |
| https://github.com/RustCrypto/elliptic-curves/pull/1600 | x_refsource_MISC |
| https://github.com/RustCrypto/elliptic-curves/com… | x_refsource_MISC |
| https://github.com/RustCrypto/elliptic-curves/com… | x_refsource_MISC |
| https://crates.io/crates/sm2/0.14.0-pre.0 | x_refsource_MISC |
| https://crates.io/crates/sm2/0.14.0-rc.0 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RustCrypto | elliptic-curves |
Affected:
= 0.14.0-pre.0
Affected: = 0.14.0-rc.0 |
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CVE-2026-19906 (GCVE-0-2026-19906)
Vulnerability from cvelistv5 – Published: 2026-08-15 19:00 – Updated: 2026-08-17 17:39 X_Open Source
VLAI
EPSS
VEX
Title
pkp pkp-lib API Key Generation APIProfileForm.php setData entropy
Summary
A weakness has been identified in pkp pkp-lib 3.3.0/3.4.0/3.5.0. This vulnerability affects the function setData of the file classes/user/form/APIProfileForm.php of the component API Key Generation. Executing a manipulation of the argument apiKey can lead to insufficient entropy. The attack may be performed from remote. This attack is characterized by high complexity. It is stated that the exploitability is difficult. This patch is called 529b5df878e571ccc727647f7748eafc1466b041. It is best practice to apply a patch to resolve this issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 17:39 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/390119 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/390119/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19906 | third-party-advisory |
| https://vuldb.com/submit/870828 | third-party-advisory |
| https://github.com/pkp/pkp-lib/issues/12951 | issue-tracking |
| https://github.com/pkp/pkp-lib/commit/529b5df878e… | patch |
| https://github.com/pkp/pkp-lib/ | product |
Impacted products
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CVE-2026-19748 (GCVE-0-2026-19748)
Vulnerability from cvelistv5 – Published: 2026-08-13 20:15 – Updated: 2026-08-14 16:44
VLAI
EPSS
VEX
Title
Tenda CH7 Kylin Web Service CWebSessionManager_ParseSession entropy
Summary
A security vulnerability has been detected in Tenda CH7, CH7G, CH10, CP3, CP3 Pro, CP7, TC3B14C, TC3B15C, TC3T14C and TC3T15C up to 20260625. Affected is the function CWebSessionManager_ParseSession of the file /user/bin/Kylin of the component Kylin Web Service. Such manipulation of the argument SESSION leads to insufficient entropy. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is told to be difficult.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:43 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/389499 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/389499/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19748 | third-party-advisory |
| https://vuldb.com/submit/868490 | third-party-advisory |
| https://github.com/howitouchyou/Tenda-Smart-Camer… | related |
| https://www.tenda.com.cn/ | product |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Tenda | CH7 |
Affected:
20260625
cpe:2.3:h:tenda:ch7:*:*:*:*:*:*:*:* |
|
| Tenda | CH7G |
Affected:
20260625
cpe:2.3:h:tenda:ch7g:*:*:*:*:*:*:*:* |
|
| Tenda | CH10 |
Affected:
20260625
cpe:2.3:h:tenda:ch10:*:*:*:*:*:*:*:* |
|
| Tenda | CP3 |
Affected:
20260625
cpe:2.3:h:tenda:cp3:*:*:*:*:*:*:*:* |
|
| Tenda | CP3 Pro |
Affected:
20260625
cpe:2.3:h:tenda:cp3_pro:*:*:*:*:*:*:*:* |
|
| Tenda | CP7 |
Affected:
20260625
cpe:2.3:h:tenda:cp7:*:*:*:*:*:*:*:* |
|
| Tenda | TC3B14C |
Affected:
20260625
cpe:2.3:h:tenda:tc3b14c:*:*:*:*:*:*:*:* |
|
| Tenda | TC3B15C |
Affected:
20260625
cpe:2.3:h:tenda:tc3b15c:*:*:*:*:*:*:*:* |
|
| Tenda | TC3T14C |
Affected:
20260625
cpe:2.3:h:tenda:tc3t14c:*:*:*:*:*:*:*:* |
|
| Tenda | TC3T15C |
Affected:
20260625
cpe:2.3:h:tenda:tc3t15c:*:*:*:*:*:*:*:* |
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CVE-2026-13199 (GCVE-0-2026-13199)
Vulnerability from cvelistv5 – Published: 2026-07-07 08:36 – Updated: 2026-07-07 13:22
VLAI
EPSS
VEX
Title
Insufficient Entropy in Raspberry Pi 5 and Compute Module 5
Summary
EEPROM firmware on Raspberry Pi 5 and Compute Module 5 devices produced non-random KASLR and RNG seed values. This resulted in consistent kernel addresses across boots and devices, potentially making it easier to exploit other vulnerabilities. Additionally, the low-quality RNG seed may affect the quality of random numbers or delay booting while sufficient entropy is accumulated from other sources.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 13:21 UTC
CWE
- CWE-331 - Insufficient Entropy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/raspberrypi/rpi-eeprom/pull/841 | patch |
| https://www.nozominetworks.com/labs/vulnerability… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Raspberry Pi | Raspberry Pi 5 and Compute Module 5 |
Affected:
0 , < 28.22-1
(apt)
|
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CVE-2026-11403 (GCVE-0-2026-11403)
Vulnerability from cvelistv5 – Published: 2026-07-14 15:28 – Updated: 2026-07-14 15:59
VLAI
EPSS
VEX
Title
Nexus Repository Manager - Insufficient Entropy in Format-Specific API Key Generation
Summary
A vulnerability in Sonatype Nexus Repository Manager's format-specific API key generation may allow a remote attacker to gain unauthorized access to repository operations as a targeted user. A format-specific API key realm (NuGet API Key, Docker Bearer Token, or npm Bearer Token) must be enabled and the targeted user must have an active API key for this vulnerability to be exploitable.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 15:59 UTC
CWE
- CWE-331 - Insufficient entropy
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://help.sonatype.com/en/sonatype-nexus-repos… | patch |
| https://support.sonatype.com/hc/en-us/articles/52… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Sonatype | Nexus Repository Manager |
Affected:
3.0.0 , < 3.93.0
(semver)
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{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-11403",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-14T15:59:04.658227Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T15:59:18.173Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
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CVE-2026-8700 (GCVE-0-2026-8700)
Vulnerability from cvelistv5 – Published: 2026-05-15 22:10 – Updated: 2026-05-18 15:04
VLAI
EPSS
VEX
Title
Crypt::DSA versions before 1.20 for Perl generate seeds using rand
Summary
Crypt::DSA versions before 1.20 for Perl generate seeds using rand.
Seeds were generated using Perl's built-in rand function, which is predictable and unsuitable for security usage.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-18 15:03 UTC
CWE
- CWE-331 - Insufficient Entropy
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TIMLEGGE | Crypt::DSA |
Affected:
0 , < 1.20
(custom)
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CVE-2026-7210 (GCVE-0-2026-7210)
Vulnerability from cvelistv5 – Published: 2026-05-11 17:19 – Updated: 2026-08-14 00:28
VLAI
EPSS
VEX
Title
The expat and elementtree parsers use insufficient entropy for XML hash-flooding protection
Summary
`xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to trigger hash flooding.\r\n\r\nFully mitigating this vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-11 18:53 UTC
CWE
- CWE-331 - Insufficient entropy
Assigner
References
12 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Python Software Foundation | CPython |
Affected:
0 , < 3.11.16
(python)
Affected: 3.12.0 , < 3.12.14 (python) Affected: 3.13.0 , < 3.13.14 (python) Affected: 3.14.0 , < 3.14.6 (python) Affected: 3.15.0a1 , < 3.15.0b2 (python) |
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CVE-2026-4937 (GCVE-0-2026-4937)
Vulnerability from cvelistv5 – Published: 2026-08-19 20:11 – Updated: 2026-08-20 15:20
VLAI
EPSS
VEX
Title
Power System Insufficient Entropy
Summary
IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 could allow a local attacker with administrative privileges to decrypt encrypted data due to certain hypervisor calls utilizing less entropy than requested.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 14:18 UTC
CWE
- CWE-331 - Insufficient Entropy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283900 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | PowerVM Hypervisor |
Affected:
FW1110.00 , ≤ FW1110.20
(semver)
Affected: FW1060.00 , ≤ FW1060.71 (semver) Affected: FW950.00 , ≤ FW950.H2 (semver) cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1110.20:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1060.71:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:* |
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"value": "\u003cp\u003eCustomers with the products below should install FW1110.30(1110_125), FW1120.00(1120_159), or newer to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1180 (9080-HEU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1110.30(1110_145), FW1120.00(1120_183), or newer to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1122 (9824-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1124 (9824-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1122s (9824-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1114 (9824-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1122 (9856-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1124 (9856-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1150 (9043-MRU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1060.72(1060_171) / FW1060.80(1060_180), or newer to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1080 (9080-HEX)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1060.72(1060_177) / FW1060.80(1060_185), or newer to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1022 (9105-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1024 (9105-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1022s (9105-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1014 (9105-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1022 (9786-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1024 (9786-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1050 (9043-MRX)\u003c/li\u003e\u003cli\u003eIBM Power System S1012 (9028-21B)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\u003cbr/\u003ePower 9\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S922 (9009-22G)\u003c/li\u003e\u003cli\u003eIBM Power System H922 (9223-22S)\u003c/li\u003e\u003cli\u003eIBM Power System S914 (9009-41G)\u003c/li\u003e\u003cli\u003eIBM Power System S924 (9009-42G)\u003c/li\u003e\u003cli\u003eIBM Power System H924 (9223-42S)\u003c/li\u003e\u003cli\u003eIBM Power System E950 (9040-MR9)\u003c/li\u003e\u003cli\u003eIBM Power System E980 (9080-M9S)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003cem\u003eThe images mentioned above can be located at IBM Fix Central : \u003c/em\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"\u003e\u003cem\u003ehttps://www.ibm.com/support/fixcentral/\u003c/em\u003e\u003c/a\u003e\u003c/p\u003e"
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"dateReserved": "2026-03-26T20:42:14.402Z",
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CVE-2026-4936 (GCVE-0-2026-4936)
Vulnerability from cvelistv5 – Published: 2026-08-19 20:14 – Updated: 2026-08-20 13:29
VLAI
EPSS
VEX
Title
Power System Insufficient Entropy
Summary
IBM PowerVM Hypervisor Platform KeyStore (PKS) and virtual TPM FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H2 use persistent storage key seeds that result in an AES key with reduced strength. An attacker with access to the service processor or HMC could exploit this weakness to derive the encryption key and access the data.
Severity
5.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 13:28 UTC
CWE
- CWE-331 - Insufficient Entropy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7283890 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | PowerVM Hypervisor |
Affected:
FW1110.00 , ≤ FW1110.20
(semver)
Affected: FW1060.00 , ≤ FW1060.71 (semver) Affected: FW950.00 , ≤ FW950.H2 (semver) cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1110.20:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1060.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw1060.71:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw950.00:*:*:*:*:*:*:* cpe:2.3:o:ibm:power_systems_firmware:fw950.h2:*:*:*:*:*:*:* |
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"value": "\u003cp\u003eCustomers with the products below should install FW1110.30(1110_125), FW1120.00(1120_159), or newer to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1180 (9080-HEU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1110.30(1110_145), FW1120.00(1120_183), or newer to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1122 (9824-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1124 (9824-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1122s (9824-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1114 (9824-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1122 (9856-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1124 (9856-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1150 (9043-MRU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1120.00(1120_183), or newer to remediate this vulnerability.\u003c/p\u003e\u003cp\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1112 (9242-21B, 9242-21T)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003cbr/\u003eCustomers with the products below should install FW1060.72(1060_171) / FW1060.80(1060_180), or newer to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1080 (9080-HEX)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1060.72(1060_177) / FW1060.80(1060_185), or newer to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1022 (9105-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1024 (9105-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1022s (9105-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1014 (9105-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1022 (9786-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1024 (9786-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1050 (9043-MRX)\u003c/li\u003e\u003cli\u003eIBM Power System S1012 (9028-21B)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\u003cbr/\u003ePower 9\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S922 (9009-22G)\u003c/li\u003e\u003cli\u003eIBM Power System H922 (9223-22S)\u003c/li\u003e\u003cli\u003eIBM Power System S914 (9009-41G)\u003c/li\u003e\u003cli\u003eIBM Power System S924 (9009-42G)\u003c/li\u003e\u003cli\u003eIBM Power System H924 (9223-42S)\u003c/li\u003e\u003cli\u003eIBM Power System E950 (9040-MR9)\u003c/li\u003e\u003cli\u003eIBM Power System E980 (9080-M9S)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003cem\u003eThe images mentioned above can be located at IBM Fix Central : \u003c/em\u003e\u003ca href=\"https://www.ibm.com/support/fixcentral/\" rel=\"noopener noreferrer nofollow\"\u003e\u003cem\u003ehttps://www.ibm.com/support/fixcentral/\u003c/em\u003e\u003c/a\u003e\u003c/p\u003e"
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"value": "Customers with the products below should install FW1110.30(1110_125), FW1120.00(1120_159), or newer to remediate this vulnerability.\nPower 11\n\n * IBM Power System E1180 (9080-HEU)\n\n\nCustomers with the products below should install FW1110.30(1110_145), FW1120.00(1120_183), or newer to remediate this vulnerability.\nPower 11\n\n * IBM Power System S1122 (9824-22A)\n * IBM Power System S1124 (9824-42A)\n * IBM Power System S1122s (9824-22B)\n * IBM Power System S1114 (9824-41B)\n * IBM Power System L1122 (9856-22H)\n * IBM Power System L1124 (9856-42H)\n * IBM Power System E1150 (9043-MRU)\n\n\nCustomers with the products below should install FW1120.00(1120_183), or newer to remediate this vulnerability.\n\n\n\nPower 11\n\n * IBM Power System S1112 (9242-21B, 9242-21T)\n\n\n\nCustomers with the products below should install FW1060.72(1060_171) / FW1060.80(1060_180), or newer to remediate this vulnerability.\nPower 10\n\n * IBM Power System E1080 (9080-HEX)\n\n\nCustomers with the products below should install FW1060.72(1060_177) / FW1060.80(1060_185), or newer to remediate this vulnerability.\nPower 10\n\n * IBM Power System S1022 (9105-22A)\n * IBM Power System S1024 (9105-42A)\n * IBM Power System S1022s (9105-22B)\n * IBM Power System S1014 (9105-41B)\n * IBM Power System L1022 (9786-22H)\n * IBM Power System L1024 (9786-42H)\n * IBM Power System E1050 (9043-MRX)\n * IBM Power System S1012 (9028-21B)\n\n\nCustomers with the products below should install FW950.H3(950_230) or newer to remediate this vulnerability.\nPower 9\n\n * IBM Power System S922 (9009-22G)\n * IBM Power System H922 (9223-22S)\n * IBM Power System S914 (9009-41G)\n * IBM Power System S924 (9009-42G)\n * IBM Power System H924 (9223-42S)\n * IBM Power System E950 (9040-MR9)\n * IBM Power System E980 (9080-M9S)\n\n\nThe images mentioned above can be located at IBM Fix Central : https://www.ibm.com/support/fixcentral/ https://www.ibm.com/support/fixcentral/"
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"value": "\u003cp\u003eFollowing successful application of the server firmware update, additional actions are needed. Remediating this CVE requires performing a non-disruptive Hypervisor Macro Resource Dump that regenerates the keys used to encrypt partition configuration data, Platform Keystore, and VTPM data. The instructions to issue this resource dump are listed below.\u003c/p\u003e\u003cp\u003eBefore issuing the resource dump, confirm all of the following:\u003c/p\u003e\u003cul\u003e\u003cli\u003eThe system is at runtime.\u003c/li\u003e\u003cli\u003eThere are no outstanding recovery actions (the system must not be in \"Recovery\" state on the HMC).\u003c/li\u003e\u003cli\u003eThere are no unresolved action-required PEL entries.\u003c/li\u003e\u003cli\u003eThe system is otherwise stable: the CEC will not be power cycled, and partition workloads are stable.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eThe required resource dump can be issued directly through the HMC GUI or the Advanced System Management (ASM) interface, and may take up to 30 minutes to complete:\u003c/p\u003e\u003cp\u003eHMC-attached systems : \u00a0\u003ca href=\"https://www.ibm.com/support/pages/node/667943\" rel=\"nofollow\"\u003ehttps://www.ibm.com/support/pages/node/667943\u003c/a\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eUse selector: \u003cem\u003e\u003cstrong\u003esbmgr -regenerateKeys\u003c/strong\u003e\u003c/em\u003e\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eFSP-based standalone systems:\u003c/p\u003e\u003cul\u003e\u003cli\u003eLog onto the system ASM with admin credentials\u003c/li\u003e\u003cli\u003eNavigate to System Service Aids -\u0026gt; Resource Dump\u003c/li\u003e\u003cli\u003eInitiate the resource dump\n\u003cul\u003e\u003cli\u003eUse selector: \u003cem\u003e\u003cstrong\u003esbmgr -regenerateKeys\u003c/strong\u003e\u003c/em\u003e\u003c/li\u003e\u003c/ul\u003e\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eBMC-based standalone systems:\u003c/p\u003e\u003cul\u003e\u003cli\u003eLog onto the system ASMi with admin credentials\u003c/li\u003e\u003cli\u003eNavigate to Logs and Services -\u0026gt; Dumps -\u0026gt; Select a dump -\u0026gt; Resource Dump\u003c/li\u003e\u003cli\u003eInitiate the resource dump:\n\u003cul\u003e\u003cli\u003eUse selector: \u003cem\u003e\u003cstrong\u003esbmgr -regenerateKeys\u003c/strong\u003e\u003c/em\u003e\u003c/li\u003e\u003c/ul\u003e\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eFor \u003cstrong\u003eHMC managed systems,\u003c/strong\u003e after the resource dump completes, a dump file named RSCDUMP.XXXXXXX.YYYYYYYY.ZZZZZZZZZZZZZZ, where X is the system Serial Number, Y is the dump identifier, and Z is the server UTC date and time stamp, will offload to the HMC.\u003c/p\u003e\u003cp\u003eTo monitor for completion of the regeneration, refresh the HMC Dumps GUI, or on HMC CLI, run:\u003c/p\u003e\u003cul\u003e\u003cli\u003eHMC CLI (SSH):\u00a0\u003cem\u003els -ltr\u00a0/dump/RSCDUMP.*\u003c/em\u003e\u003c/li\u003e\u003cli\u003eValidate the Serial Number and date of dump.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003eOnce the dump has offloaded to the HMC, check in the HMC\u2019s Serviceable Event view. Event B7009021 would be an indication of a failure of this function. We recommend contacting Service for your server to review the cause of the event.\u003c/p\u003e\u003cp\u003eFor \u003cstrong\u003estandalone servers\u003c/strong\u003e, the resource dump will be uploaded to the Operating System.\u003c/p\u003e\u003cul\u003e\u003cli\u003eLinux: Server level dumps, including Resource Dumps, will be placed in directory:\u00a0\u003cstrong\u003e/var/log/dump/\u003c/strong\u003e. A B7009021 would present as a permanent error in the PPC64 platform log file.\u003c/li\u003e\u003cli\u003eIBM i: Server level dumps, including Resource Dumps, will be copied into the\u00a0\u003cstrong\u003eMain Storage Dump Manager\u003c/strong\u003e in System Service Tools. A B7009021 would show in the Service Action Log in System Service Tools.\u003c/li\u003e\u003cli\u003eAIX: Server level dumps, including Resource Dumps, will be placed in directory:\u00a0\u003cstrong\u003e/var/adm/ras/platform/\u003c/strong\u003e. A B7009021 would present Permanent sysplanar error in the errpt.\u00a0 IBM Service may be needed to determine if the event is a B7009021\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003cstrong\u003eLastly:\u003c/strong\u003e Wait at least 60 minutes after the resource dump completes before creating a new non-default backup profile on the HMC or powering off the system. This ensures all Platform Keystore and VTPM data in the profile is valid.\u003c/p\u003e"
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"value": "Following successful application of the server firmware update, additional actions are needed. Remediating this CVE requires performing a non-disruptive Hypervisor Macro Resource Dump that regenerates the keys used to encrypt partition configuration data, Platform Keystore, and VTPM data. The instructions to issue this resource dump are listed below.\n\n\n\nBefore issuing the resource dump, confirm all of the following:\n\n * The system is at runtime.\n * There are no outstanding recovery actions (the system must not be in \"Recovery\" state on the HMC).\n * There are no unresolved action-required PEL entries.\n * The system is otherwise stable: the CEC will not be power cycled, and partition workloads are stable.\n\n\n\n\nThe required resource dump can be issued directly through the HMC GUI or the Advanced System Management (ASM) interface, and may take up to 30 minutes to complete:\n\n\n\nHMC-attached systems : \u00a0 https://www.ibm.com/support/pages/node/667943 \n\n * Use selector: sbmgr -regenerateKeys\n\n\n\n\nFSP-based standalone systems:\n\n * Log onto the system ASM with admin credentials\n * Navigate to System Service Aids -\u003e Resource Dump\n * Initiate the resource dump\n * Use selector: sbmgr -regenerateKeys\n\n\n\n\n\n\n\nBMC-based standalone systems:\n\n * Log onto the system ASMi with admin credentials\n * Navigate to Logs and Services -\u003e Dumps -\u003e Select a dump -\u003e Resource Dump\n * Initiate the resource dump:\n * Use selector: sbmgr -regenerateKeys\n\n\n\n\n\n\n\nFor HMC managed systems, after the resource dump completes, a dump file named RSCDUMP.XXXXXXX.YYYYYYYY.ZZZZZZZZZZZZZZ, where X is the system Serial Number, Y is the dump identifier, and Z is the server UTC date and time stamp, will offload to the HMC.\n\n\n\nTo monitor for completion of the regeneration, refresh the HMC Dumps GUI, or on HMC CLI, run:\n\n * HMC CLI (SSH):\u00a0ls -ltr\u00a0/dump/RSCDUMP.*\n * Validate the Serial Number and date of dump.\n\n\n\n\nOnce the dump has offloaded to the HMC, check in the HMC\u2019s Serviceable Event view. Event B7009021 would be an indication of a failure of this function. We recommend contacting Service for your server to review the cause of the event.\n\n\n\nFor standalone servers, the resource dump will be uploaded to the Operating System.\n\n * Linux: Server level dumps, including Resource Dumps, will be placed in directory:\u00a0/var/log/dump/. A B7009021 would present as a permanent error in the PPC64 platform log file.\n * IBM i: Server level dumps, including Resource Dumps, will be copied into the\u00a0Main Storage Dump Manager in System Service Tools. A B7009021 would show in the Service Action Log in System Service Tools.\n * AIX: Server level dumps, including Resource Dumps, will be placed in directory:\u00a0/var/adm/ras/platform/. A B7009021 would present Permanent sysplanar error in the errpt.\u00a0 IBM Service may be needed to determine if the event is a B7009021\n\n\n\n\nLastly: Wait at least 60 minutes after the resource dump completes before creating a new non-default backup profile on the HMC or powering off the system. This ensures all Platform Keystore and VTPM data in the profile is valid."
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"datePublished": "2026-08-19T20:14:55.609Z",
"dateReserved": "2026-03-26T20:32:20.576Z",
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CVE-2026-4932 (GCVE-0-2026-4932)
Vulnerability from cvelistv5 – Published: 2026-07-28 18:09 – Updated: 2026-07-28 18:46
VLAI
EPSS
VEX
Title
This Power System update is being released to address Insufficient Entropy
Summary
IBM PowerVM Hypervisor FW1110.00 through FW1110.20, and FW1060.00 through FW1060.71 could allow an attacker with physical access to the Transparent Memory Encryption (TME) hardware to decrypt encrypted memory due to insufficient cryptographic entropy.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 18:46 UTC
CWE
- CWE-331 - Insufficient Entropy
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7280632 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | PowerVM Hypervisor |
Affected:
FW1110.00 , ≤ FW1110.20
(semver)
Affected: FW1060.00 , ≤ FW1060.71 (semver) cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_hypervisor:fw1110.20:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_hypervisor:fw1110.20.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00.0:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_hypervisor:fw1060.71:*:*:*:*:*:*:* cpe:2.3:a:ibm:powervm_hypervisor:fw1060.71.0:*:*:*:*:*:*:* |
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"value": "\u003cp\u003eCustomers with the products below should install FW1110.30(1110_125), or newer and reboot the system to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1180 (9080-HEU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003eCustomers with the products below should install FW1110.30(1110_145), or newer and reboot the system to remediate this vulnerability.\u003cbr/\u003ePower 11\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1122 (9824-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1124 (9824-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1122s (9824-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1114 (9824-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1122 (9856-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1124 (9856-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1150 (9043-MRU)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003cbr/\u003eCustomers with the products below should install FW1060.72(1060_171)/FW1060.80(1060_180), or newer and reboot the system to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System E1080 (9080-HEX)\u003c/li\u003e\u003c/ol\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eCustomers with the products below should install \u00a0FW1060.72(1060_177)/FW1060.80(1060_185),\u00a0 or newer and reboot the system to remediate this vulnerability.\u003cbr/\u003ePower 10\u003c/p\u003e\u003col\u003e\u003cli\u003eIBM Power System S1022 (9105-22A)\u003c/li\u003e\u003cli\u003eIBM Power System S1024 (9105-42A)\u003c/li\u003e\u003cli\u003eIBM Power System S1022s (9105-22B)\u003c/li\u003e\u003cli\u003eIBM Power System S1014 (9105-41B)\u003c/li\u003e\u003cli\u003eIBM Power System L1022 (9786-22H)\u003c/li\u003e\u003cli\u003eIBM Power System L1024 (9786-42H)\u003c/li\u003e\u003cli\u003eIBM Power System E1050 (9043-MRX)\u003c/li\u003e\u003cli\u003eIBM Power System S1012 (9028-21B)\u003c/li\u003e\u003c/ol\u003e"
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Mitigation
Implementation
Determine the necessary entropy to adequately provide for randomness and predictability. This can be achieved by increasing the number of bits of objects such as keys and seeds.
CAPEC-59: Session Credential Falsification through Prediction
This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.