Common Weakness Enumeration
CWE-191
AllowedInteger Underflow (Wrap or Wraparound)
Abstraction: Base · Status: Draft
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.
449 vulnerabilities reference this CWE, most recent first.
CVE-2026-27907 (GCVE-0-2026-27907)
Vulnerability from cvelistv5 – Published: 2026-04-14 16:57 – Updated: 2026-10-15 15:52
VLAI
EPSS
VEX
Title
Windows Storage Spaces Controller Elevation of Privilege Vulnerability
Summary
Integer underflow (wrap or wraparound) in Windows Storage Spaces Controller allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-09 00:00 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
microsoft
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.6936
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.6936
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.8246
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.8246
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.1836
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.2274
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.32690
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.32690
(custom)
|
Date Public
2026-04-14 14:00
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CVE-2026-27710 (GCVE-0-2026-27710)
Vulnerability from cvelistv5 – Published: 2026-02-25 23:43 – Updated: 2026-02-26 15:48
VLAI
EPSS
VEX
Title
NanaZip .NET Single-File Parser Integer Underflow Leads to Unbounded Allocation (DoS)
Summary
NanaZip is an open source file archive. Starting in version 5.0.1252.0 and prior to versions 6.0.1638.0 and 6.5.1638.0, a denial-of-service vulnerability exists in NanaZip’s `.NET Single File Application` parser. A crafted bundle can force an integer underflow in header-size calculation and trigger an unbounded memory allocation attempt during archive open. Versions 6.0.1638.0 and 6.5.1638.0 fix the issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-26 15:48 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
GitHub_M
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/M2Team/NanaZip/security/adviso… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-27596 (GCVE-0-2026-27596)
Vulnerability from cvelistv5 – Published: 2026-03-02 19:40 – Updated: 2026-03-02 20:25
VLAI
EPSS
VEX
Title
Exiv2: Integer Underflow in LoaderNative::getData() Causes Heap Buffer Overflow
Summary
Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. Prior to version 0.28.8, an out-of-bounds read was found in Exiv2. The vulnerability is in the preview component, which is only triggered when running Exiv2 with an extra command line argument, like -pp. The out-of-bounds read is at a 4GB offset, which usually causes Exiv2 to crash. This issue has been patched in version 0.28.8.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 20:25 UTC
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/Exiv2/exiv2/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/Exiv2/exiv2/issues/3511 | x_refsource_MISC |
| https://github.com/Exiv2/exiv2/pull/3512 | x_refsource_MISC |
| https://github.com/Exiv2/exiv2/commit/eaa9e21aabe… | x_refsource_MISC |
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CVE-2026-27297 (GCVE-0-2026-27297)
Vulnerability from cvelistv5 – Published: 2026-04-14 22:58 – Updated: 2026-08-27 22:15
VLAI
EPSS
VEX
Title
Adobe Framemaker | Integer Underflow (Wrap or Wraparound) (CWE-191)
Summary
Adobe Framemaker versions 2022.8 and earlier are affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 03:59 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound) (CWE-191)
Assigner
adobe
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/framema… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Adobe Framemaker |
Affected:
0 , ≤ 2022.8
(custom)
Unaffected: 2022.9 (custom) |
Date Public
2026-04-14 17:00
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CVE-2026-27296 (GCVE-0-2026-27296)
Vulnerability from cvelistv5 – Published: 2026-04-14 22:58 – Updated: 2026-08-27 22:15
VLAI
EPSS
VEX
Title
Adobe Framemaker | Integer Underflow (Wrap or Wraparound) (CWE-191)
Summary
Adobe Framemaker versions 2022.8 and earlier are affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 03:59 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound) (CWE-191)
Assigner
adobe
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/framema… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Adobe Framemaker |
Affected:
0 , ≤ 2022.8
(custom)
Unaffected: 2022.9 (custom) |
Date Public
2026-04-14 17:00
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CVE-2026-26204 (GCVE-0-2026-26204)
Vulnerability from cvelistv5 – Published: 2026-04-29 17:43 – Updated: 2026-04-30 12:48
VLAI
EPSS
VEX
Title
Wazuh: Heap-based NULL WRITE Buffer Underflow in GetAlertData
Summary
Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 1.0.0 to before version 4.14.4, a heap-based out-of-bounds WRITE occurs in GetAlertData, resulting in writing a NULL byte exactly 1 byte before the start of the buffer allocated by strdup. Due to unsigned integer underflow and pointer arithmetic wrapping, the write lands at offset -1 from the buffer, corrupting heap metadata. A malicious actor can potentially leverage this issue through a compromised agent to cause denial of service or heap corruption by injecting a specially crafted alert into the alerts log file monitored by wazuh-logcollector. This issue has been patched in version 4.14.4.
Severity
4.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-30 12:48 UTC
CWE
Assigner
GitHub_M
CNA
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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CVE-2026-25772 (GCVE-0-2026-25772)
Vulnerability from cvelistv5 – Published: 2026-03-17 18:11 – Updated: 2026-03-17 18:55
VLAI
EPSS
VEX
Title
Wazuh Database Synchronization Vulnerable to Stack-based Buffer Overflow via snprintf Integer Underflow
Summary
Wazuh is a free and open source platform used for threat prevention, detection, and response. Starting in version 4.4.0 and prior to version 4.14.3, a stack-based buffer overflow vulnerability exists in the Wazuh Database synchronization module (`wdb_delta_event.c`). The SQL query construction logic allows for an integer underflow when calculating the remaining buffer size. This occurs because the code incorrectly aggregates the return value of `snprintf`. If a specific database synchronization payload exceeds the size of the query buffer (2048 bytes), the size calculation wraps around to a massive integer, effectively removing bounds checking for subsequent writes. This allows an attacker to corrupt the stack, leading to a Denial of Service (DoS) or potentially RCE. Version 4.14.3 fixes the issue.
Severity
4.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-17 18:55 UTC
Assigner
GitHub_M
CNA
References
1 reference
| URL | Tags |
|---|---|
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CVE-2026-25532 (GCVE-0-2026-25532)
Vulnerability from cvelistv5 – Published: 2026-02-04 17:58 – Updated: 2026-02-04 19:24
VLAI
EPSS
VEX
Title
ESF-IDF is Vulnerable to WPS Enrollee Fragment Integer Underflow
Summary
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a vulnerability exists in the WPS (Wi-Fi Protected Setup) Enrollee implementation where malformed EAP-WSC packets with truncated payloads can cause integer underflow during fragment length calculation. When processing EAP-Expanded (WSC) messages, the code computes frag_len by subtracting header sizes from the total packet length. If an attacker sends a packet where the EAP Length field covers only the header and flags but omits the expected payload (such as the 2-byte Message Length field when WPS_MSG_FLAG_LEN is set), frag_len becomes negative. This negative value is then implicitly cast to size_t when passed to wpabuf_put_data(), resulting in a very large unsigned value. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 19:24 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
GitHub_M
CNA
References
8 references
| URL | Tags |
|---|---|
| https://github.com/espressif/esp-idf/security/adv… | x_refsource_CONFIRM |
| https://github.com/espressif/esp-idf/commit/60f99… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/6f676… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/73a58… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/b209f… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/b88be… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/cad36… | x_refsource_MISC |
| https://github.com/espressif/esp-idf/commit/de288… | x_refsource_MISC |
Impacted products
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CVE-2026-25104 (GCVE-0-2026-25104)
Vulnerability from cvelistv5 – Published: 2026-05-26 08:41 – Updated: 2026-09-23 11:57
VLAI
EPSS
VEX
Summary
A heap-based buffer overflow vulnerability exists in the LXF parsing functionality of MediaInfoLib (version(s): 26.01). A specially crafted .lxf file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 11:57 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
talos
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaArea | MediaInfoLib |
Affected:
26.01
|
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CVE-2026-25075 (GCVE-0-2026-25075)
Vulnerability from cvelistv5 – Published: 2026-03-23 18:33 – Updated: 2026-07-14 15:53
VLAI
EPSS
VEX
Title
strongSwan 4.5.0 < 6.0.5 EAP-TTLS AVP Parsing Integer Underflow
Summary
strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication. Attackers can exploit the failure to validate AVP length fields before subtraction to trigger excessive memory allocation or NULL pointer dereference, crashing the charon IKE daemon.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-25 14:29 UTC
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://www.strongswan.org/blog/2026/03/23/strong… | vendor-advisoryexploit |
| https://www.strongswan.org/blog/2026/03/23/strong… | release-notes |
| https://y637f9qq2x.com/posts/cve-2026-25075/ | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/strongswan-e… | third-party-advisory |
| https://lists.debian.org/debian-lts-announce/2026… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| strongSwan | strongSwan |
Affected:
4.5.0 , < 6.0.5
(semver)
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* |
Date Public
2026-03-23 00:00
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.