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CWE-191
Integer Underflow (Wrap or Wraparound)
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
CVE-2026-34165 (GCVE-0-2026-34165)
Vulnerability from cvelistv5 – Published: 2026-03-31 13:46 – Updated: 2026-04-02 15:10
VLAI
Title
go-git: Maliciously crafted idx file can cause asymmetric memory consumption
Summary
go-git is an extensible git implementation library written in pure Go. From version 5.0.0 to before version 5.17.1, a vulnerability has been identified in which a maliciously crafted .idx file can cause asymmetric memory consumption, potentially exhausting available memory and resulting in a denial-of-service (DoS) condition. Exploitation requires write access to the local repository's .git directory, it order to create or alter existing .idx files. This issue has been patched in version 5.17.1.
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/go-git/go-git/security/advisor… | x_refsource_CONFIRM |
| https://github.com/go-git/go-git/releases/tag/v5.17.1 | x_refsource_MISC |
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CVE-2026-34667 (GCVE-0-2026-34667)
Vulnerability from cvelistv5 – Published: 2026-05-12 20:03 – Updated: 2026-06-09 21:39
VLAI
Title
CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)
Summary
CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound) (CWE-191)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/content… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | CAI Content Credentials |
Affected:
0 , ≤ c2pa-v0.78.2
(semver)
|
Date Public
2026-05-12 17:00
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CVE-2026-34672 (GCVE-0-2026-34672)
Vulnerability from cvelistv5 – Published: 2026-05-12 20:04 – Updated: 2026-06-09 21:38
VLAI
Title
CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)
Summary
CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound) (CWE-191)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/content… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | CAI Content Credentials |
Affected:
0 , ≤ c2pa-v0.78.2
(semver)
|
Date Public
2026-05-12 17:00
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CVE-2026-35049 (GCVE-0-2026-35049)
Vulnerability from cvelistv5 – Published: 2026-06-02 18:35 – Updated: 2026-06-03 13:55
VLAI
Title
wire-ios has Persistent Remote DoS via Integer Underflow
Summary
wire-ios is an iOS client for the Wire secure messaging application. Prior to version 4.16.0, upon receiving a crafted malicious Proteus external message with an encrypted payload that is shorter than 16 bytes, the Wire iOS client crashes. The crash is triggered automatically after message receival with no user interaction. Since the malicious message persists in the conversation, the app enters a crash loop on relaunch and cannot be reopened until the local state is wiped. This issue has been fixed with version 4.16.0 which introduces the missing length check and is available via the App Store. No known workarounds are available.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/wireapp/wire-ios/security/advi… | x_refsource_CONFIRM |
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CVE-2026-39314 (GCVE-0-2026-39314)
Vulnerability from cvelistv5 – Published: 2026-04-07 16:59 – Updated: 2026-04-07 18:34
VLAI
Title
CUPS has an integer underflow in `_ppdCreateFromIPP` causes root cupsd crash via negative `job-password-supported`
Summary
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, an integer underflow vulnerability in _ppdCreateFromIPP() (cups/ppd-cache.c) allows any unprivileged local user to crash the cupsd root process by supplying a negative job-password-supported IPP attribute. The bounds check only caps the upper bound, so a negative value passes validation, is cast to size_t (wrapping to ~2^64), and is used as the length argument to memset() on a 33-byte stack buffer. This causes an immediate SIGSEGV in the cupsd root process. Combined with systemd's Restart=on-failure, an attacker can repeat the crash for sustained denial of service.
Severity
4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/OpenPrinting/cups/security/adv… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OpenPrinting | cups |
Affected:
<= 2.4.16
|
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CVE-2026-39855 (GCVE-0-2026-39855)
Vulnerability from cvelistv5 – Published: 2026-04-09 15:58 – Updated: 2026-04-09 19:22
VLAI
Title
osslsigncode has an Integer Underflow in PE Page Hash Calculation Can Cause Out-of-Bounds Read
Summary
osslsigncode is a tool that implements Authenticode signing and timestamping. Prior to 2.13, an integer underflow vulnerability exists in osslsigncode version 2.12 and earlier in the PE page-hash computation code (pe_page_hash_calc()). When page hash processing is performed on a PE file, the function subtracts hdrsize from pagesize without first validating that pagesize >= hdrsize. If a malicious PE file sets SizeOfHeaders (hdrsize) larger than SectionAlignment (pagesize), the subtraction underflows and produces a very large unsigned length. The code allocates a zero-filled buffer of pagesize bytes and then attempts to hash pagesize - hdrsize bytes from that buffer. After the underflow, this results in an out-of-bounds read from the heap and can crash the process. The vulnerability can be triggered while signing a malicious PE file with page hashing enabled (-ph), or while verifying a malicious signed PE file that already contains page hashes. Verification of an already signed file does not require the verifier to pass -ph. This vulnerability is fixed in 2.13.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/mtrojnar/osslsigncode/security… | x_refsource_CONFIRM |
| https://github.com/mtrojnar/osslsigncode/commit/2… | x_refsource_MISC |
| https://github.com/mtrojnar/osslsigncode/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mtrojnar | osslsigncode |
Affected:
< 2.13
|
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CVE-2026-40356 (GCVE-0-2026-40356)
Vulnerability from cvelistv5 – Published: 2026-04-28 00:00 – Updated: 2026-04-28 13:10
VLAI
Summary
In MIT Kerberos 5 (aka krb5) before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss_accept_sec_context() on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the process to terminate in parse_message.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MIT | Kerberos 5 |
Affected:
1.18 , < 1.22.3
(custom)
|
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CVE-2026-40386 (GCVE-0-2026-40386)
Vulnerability from cvelistv5 – Published: 2026-04-12 18:19 – Updated: 2026-04-14 16:33
VLAI
Summary
In libexif through 0.6.25, an integer underflow in size checking for Fuji and Olympus MakerNote decoding could be used by attackers to crash or leak information out of libexif-using programs.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| libexif project | libexif |
Affected:
0 , ≤ 0.6.25
(semver)
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CVE-2026-40397 (GCVE-0-2026-40397)
Vulnerability from cvelistv5 – Published: 2026-05-12 16:59 – Updated: 2026-06-19 16:12
VLAI
Title
Windows Common Log File System Driver Elevation of Privilege Vulnerability
Summary
Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9140
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.8755
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7291
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7417
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7079
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7219
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.8457
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.8457
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.2113
(custom)
|
|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26079
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26079
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23181
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23181
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9140
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9140
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.8755
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.8755
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5139
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.2330
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.32860
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.32860
(custom)
|
Date Public
2026-05-12 14:00
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CVE-2026-41499 (GCVE-0-2026-41499)
Vulnerability from cvelistv5 – Published: 2026-04-29 18:01 – Updated: 2026-04-29 18:31
VLAI
Title
Wazuh: Multiple Heap-based NULL WRITE Buffer Underflows in parse_uname_string()
Summary
Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.0.0 to before version 4.14.4, multiple heap-based out-of-bounds WRITE vulnerabilities exist in parse_uname_string() (remoted_op.c). This function processes OS identification data from agents and contains a dangerous code pattern that appears in 4 locations within the same function: writing to strlen(ptr) - 1 without checking for empty strings. When the string is empty, strlen() returns 0, and 0 - 1 wraps to SIZE_MAX due to unsigned integer underflow. Due to pointer arithmetic wrapping, SIZE_MAX effectively becomes -1, causing a write exactly 1 byte before the allocated buffer. This corrupts heap metadata (e.g., the chunk size field in glibc malloc), leading to heap corruption. This issue has been patched in version 4.14.4.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/wazuh/wazuh/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/wazuh/wazuh/releases/tag/v4.14.4 | x_refsource_MISC |
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.