Common Weakness Enumeration
CWE-337
AllowedPredictable Seed in Pseudo-Random Number Generator (PRNG)
Abstraction: Variant · Status: Draft
A Pseudo-Random Number Generator (PRNG) is initialized from a predictable seed, such as the process ID or system time.
25 vulnerabilities reference this CWE, most recent first.
CVE-2026-66372 (GCVE-0-2026-66372)
Vulnerability from cvelistv5 – Published: 2026-09-15 20:41 – Updated: 2026-09-15 20:41
VLAI
EPSS
VEX
Title
Predictable Seed in Pseudo-Random Number Generator (PRNG) in Digital Watchdog VMAX DVR and NVR Product Lineups
Summary
The affected products use insufficiently random values, which allows web session tokens to be predictable, bounding token entropy to the seed space.
Severity
CWE
- CWE-337 - Predictable seed in Pseudo-Random number generator (PRNG)
Assigner
References
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Digital Watchdog | VMAX A1 G4 DVR |
Affected:
All
|
|
| Digital Watchdog | VMAX IP G4 NVR |
Affected:
All
|
|
| Digital Watchdog | VMAX A1 PLUS |
Affected:
All
|
|
| Digital Watchdog | VA1G4 Recorder |
Affected:
All
|
|
| Digital Watchdog | VG4 Recorder |
Affected:
All
|
Date Public
2026-09-15 18:28
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CVE-2026-26018 (GCVE-0-2026-26018)
Vulnerability from cvelistv5 – Published: 2026-03-06 15:35 – Updated: 2026-07-15 01:15
VLAI
EPSS
VEX
Title
CoreDNS Loop Detection Denial of Service Vulnerability
Summary
CoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists in CoreDNS's loop detection plugin that allows an attacker to crash the DNS server by sending specially crafted DNS queries. The vulnerability stems from the use of a predictable pseudo-random number generator (PRNG) for generating a secret query name, combined with a fatal error handler that terminates the entire process. This issue has been patched in version 1.14.2.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 16:07 UTC
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/coredns/coredns/security/advis… | x_refsource_CONFIRM |
| https://github.com/coredns/coredns/releases/tag/v1.14.2 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-26018 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2445242 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:36873 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:25127 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:8151 | vendor-advisoryx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| coredns | coredns |
Affected:
< 1.14.2
|
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1782924920 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.13 |
Unaffected:
1782924937 , < *
(rpm)
cpe:/a:redhat:acm:2.13::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1780204232 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.14 |
Unaffected:
1780204249 , < *
(rpm)
cpe:/a:redhat:acm:2.14::el9 |
|
| Red Hat | Red Hat Advanced Cluster Management for Kubernetes 2.15 |
Unaffected:
1774086225 , < *
(rpm)
cpe:/a:redhat:acm:2.15::el9 |
|
| Red Hat | Red Hat Connectivity Link 1 |
cpe:/a:redhat:connectivity_link:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
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CVE-2026-25235 (GCVE-0-2026-25235)
Vulnerability from cvelistv5 – Published: 2026-02-03 18:29 – Updated: 2026-02-04 20:34
VLAI
EPSS
VEX
Title
PEAR Has a Predictable Verification Hash in Election Account Requests
Summary
PEAR is a framework and distribution system for reusable PHP components. Prior to version 1.33.0, predictable verification hashes may allow attackers to guess verification tokens and potentially verify election account requests without authorization. This issue has been patched in version 1.33.0.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 20:34 UTC
CWE
- CWE-337 - Predictable Seed in Pseudo-Random Number Generator (PRNG)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pear/pearweb/security/advisori… | x_refsource_CONFIRM |
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CVE-2025-62710 (GCVE-0-2025-62710)
Vulnerability from cvelistv5 – Published: 2025-10-22 22:19 – Updated: 2025-10-24 18:28
VLAI
EPSS
VEX
Title
Sakai kernel-impl: predictable PRNG used to generate server‑side encryption key in EncryptionUtilityServiceImpl
Summary
Sakai is a Collaboration and Learning Environment. Prior to versions 23.5 and 25.0, EncryptionUtilityServiceImpl initialized an AES256TextEncryptor password (serverSecretKey) using RandomStringUtils with the default java.util.Random. java.util.Random is a non‑cryptographic PRNG and can be predicted from limited state/seed information (e.g., start time window), substantially reducing the effective search space of the generated key. An attacker who can obtain ciphertexts (e.g., exported or at‑rest strings protected by this service) and approximate the PRNG seed can feasibly reconstruct the serverSecretKey and decrypt affected data. SAK-49866 is patched in Sakai 23.5, 25.0, and trunk.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-23 15:37 UTC
CWE
- CWE-337 - Predictable Seed in Pseudo-Random Number Generator (PRNG)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sakaiproject/sakai/security/ad… | x_refsource_CONFIRM |
| https://github.com/sakaiproject/sakai/commit/bde0… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| sakaiproject | sakai |
Affected:
< 23.5
Affected: < 25.0 |
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CVE-2025-55069 (GCVE-0-2025-55069)
Vulnerability from cvelistv5 – Published: 2025-09-23 22:15 – Updated: 2025-09-24 14:07
VLAI
EPSS
VEX
Title
AutomationDirect CLICK PLUS Predictable Seed in Pseudo-Random Number Generator
Summary
A predictable seed in pseudo-random number generator vulnerability has been discovered in firmware version 3.60 of the Click Plus PLC. The vulnerability relies on the fact that the software implements a predictable seed for its pseudo-random number generator, which compromises the security of the generated private keys.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-24 14:06 UTC
CWE
- CWE-337 - Predictable Seed in Pseudo-Random Number Generator
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| AutomationDirect | CLICK PLUS C0-0x CPU firmware |
Affected:
0 , < v3.71
(custom)
|
|
| AutomationDirect | CLICK PLUS C0-1x CPU firmware |
Affected:
0 , < v3.71
(custom)
|
|
| AutomationDirect | CLICK PLUS C2-x CPU firmware |
Affected:
0 , < v3.71
(custom)
|
Date Public
2025-09-23 16:00
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CVE-2025-20613 (GCVE-0-2025-20613)
Vulnerability from cvelistv5 – Published: 2025-08-12 16:58 – Updated: 2025-08-12 19:22
VLAI
EPSS
VEX
Summary
Predictable Seed in Pseudo-Random Number Generator (PRNG) in the firmware for some Intel(R) TDX may allow an authenticated user to potentially enable information disclosure via local access.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-12 19:22 UTC
CWE
- Information Disclosure
- CWE-337 - Predictable Seed in Pseudo-Random Number Generator (PRNG)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Intel(R) TDX |
Affected:
See references
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CVE-2025-7770 (GCVE-0-2025-7770)
Vulnerability from cvelistv5 – Published: 2025-08-06 20:45 – Updated: 2025-08-07 14:49
VLAI
EPSS
VEX
Title
Predictable Seed in Pseudo-Random Number Generator (PRNG) in Tigo Energy Cloud Connect Advanced
Summary
Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API. The session IDs are generated using a predictable method based on the current timestamp, allowing attackers to recreate valid session IDs. When combined with the ability to circumvent session ID requirements for certain commands, this enables unauthorized access to sensitive device functions on connected solar optimization systems.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-07 14:48 UTC
CWE
- CWE-337 - Predictable Seed in Pseudo-Random Number Generator (PRNG)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.cisa.gov/news-events/ics-advisories/i… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tigo Energy | Cloud Connect Advanced |
Affected:
0 , ≤ 4.0.1
(custom)
|
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CVE-2024-22194 (GCVE-0-2024-22194)
Vulnerability from cvelistv5 – Published: 2024-01-11 02:21 – Updated: 2025-06-03 14:25
VLAI
EPSS
VEX
Title
cdo-local-uuid vulnerable to insertion of artifact derived from developer's Present Working Directory into demonstration code
Summary
cdo-local-uuid project provides a specialized UUID-generating function that can, on user request, cause a program to generate deterministic UUIDs. An information leakage vulnerability is present in `cdo-local-uuid` at version `0.4.0`, and in `case-utils` in unpatched versions (matching the pattern `0.x.0`) at and since `0.5.0`, before `0.15.0`. The vulnerability stems from a Python function, `cdo_local_uuid.local_uuid()`, and its original implementation `case_utils.local_uuid()`.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-08 20:11 UTC
CWE
Assigner
References
14 references
| URL | Tags |
|---|---|
| https://github.com/Cyber-Domain-Ontology/CDO-Util… | x_refsource_CONFIRM |
| https://github.com/Cyber-Domain-Ontology/CDO-Util… | x_refsource_MISC |
| https://github.com/Cyber-Domain-Ontology/CDO-Util… | x_refsource_MISC |
| https://github.com/Cyber-Domain-Ontology/CDO-Util… | x_refsource_MISC |
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| https://github.com/casework/CASE-Utilities-Python… | x_refsource_MISC |
| https://github.com/casework/CASE-Utilities-Python… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cyber-Domain-Ontology | CDO-Utility-Local-UUID |
Affected:
= 0.4.0
Affected: = 0.5.0 Affected: = 0.6.0 Affected: = 0.7.0 Affected: = 0.8.0 Affected: = 0.9.0 Affected: = 0.10.0 Affected: = 0.11.0 Affected: = 0.12.0 |
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CVE-2024-7558 (GCVE-0-2024-7558)
Vulnerability from cvelistv5 – Published: 2024-10-02 10:06 – Updated: 2024-10-02 13:59
VLAI
EPSS
VEX
Summary
JUJU_CONTEXT_ID is a predictable authentication secret. On a Juju machine (non-Kubernetes) or Juju charm container (on Kubernetes), an unprivileged user in the same network namespace can connect to an abstract domain socket and guess the JUJU_CONTEXT_ID value. This gives the unprivileged user access to the same information and tools as the Juju charm.
Severity
8.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-02 13:58 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/juju/juju/security/advisories/… | issue-tracking |
| https://www.cve.org/CVERecord?id=CVE-2024-7558 | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Canonical Ltd. | Juju |
Affected:
3.5 , < 3.5.4
(semver)
Affected: 3.4 , < 3.4.6 (semver) Affected: 3.3 , < 3.3.7 (semver) Affected: 3.1 , < 3.1.10 (semver) Affected: 2.9 , < 2.9.51 (semver) |
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CVE-2023-49343 (GCVE-0-2023-49343)
Vulnerability from cvelistv5 – Published: 2023-12-14 21:31 – Updated: 2024-08-02 21:53
VLAI
EPSS
VEX
Summary
Temporary data passed between application components by Budgie Extras Dropby applet could potentially be viewed or manipulated. The data is stored in a location that is accessible to any user who has local access to the system. Attackers may pre-create and control this file to present false information to users or deny access to the application and panel.
Severity
6 (Medium)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/UbuntuBudgie/budgie-extras/sec… | issue-tracking |
| https://ubuntu.com/security/notices/USN-6556-1 | third-party-advisory |
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV… | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ubuntu Budgie | Budgie Extras |
Affected:
v1.4.0 , < v1.7.1
(semver)
|
Date Public
2023-12-14 00:00
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Mitigation
Use non-predictable inputs for seed generation.
Mitigation MIT-2
Architecture and Design
Requirements
Strategy: Libraries or Frameworks
Use products or modules that conform to FIPS 140-2 [REF-267] to avoid obvious entropy problems, or use the more recent FIPS 140-3 [REF-1192] if possible.
Mitigation MIT-50
Implementation
Use a PRNG that periodically re-seeds itself using input from high-quality sources, such as hardware devices with high entropy. However, do not re-seed too frequently, or else the entropy source might block.
No CAPEC attack patterns related to this CWE.