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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-2026-26204 (GCVE-0-2026-26204)
Vulnerability from cvelistv5 – Published: 2026-04-29 17:43 – Updated: 2026-04-30 12:48
VLAI
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 (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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CVE-2026-27296 (GCVE-0-2026-27296)
Vulnerability from cvelistv5 – Published: 2026-04-14 22:58 – Updated: 2026-04-15 09:13
VLAI
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 (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/framema… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Adobe Framemaker |
Affected:
0 , ≤ 2022.8
(semver)
|
Date Public
2026-04-14 17:00
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CVE-2026-27297 (GCVE-0-2026-27297)
Vulnerability from cvelistv5 – Published: 2026-04-14 22:58 – Updated: 2026-04-15 09:13
VLAI
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 (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/framema… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Adobe Framemaker |
Affected:
0 , ≤ 2022.8
(semver)
|
Date Public
2026-04-14 17:00
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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
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 (v2.0.3)
Assigner
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-2026-27710 (GCVE-0-2026-27710)
Vulnerability from cvelistv5 – Published: 2026-02-25 23:43 – Updated: 2026-02-26 15:48
VLAI
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 (v2.0.3)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/M2Team/NanaZip/security/adviso… | x_refsource_CONFIRM |
Impacted products
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CVE-2026-27907 (GCVE-0-2026-27907)
Vulnerability from cvelistv5 – Published: 2026-04-14 16:57 – Updated: 2026-06-19 16:07
VLAI
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 (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
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 11 version 22H3 |
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-2026-28525 (GCVE-0-2026-28525)
Vulnerability from cvelistv5 – Published: 2026-04-23 20:59 – Updated: 2026-05-25 23:41
VLAI
Title
SWUpdate Integer Underflow in Multipart Upload Parser
Summary
SWUpdate contains an integer underflow vulnerability in the multipart upload parser in mongoose_multipart.c that allows unauthenticated attackers to cause a denial of service by sending a crafted HTTP POST request to /upload with a malformed multipart boundary and controlled TCP stream timing. Attackers can trigger an integer underflow in the mg_http_multipart_continue_wait_for_chunk() function when the buffer length falls within a specific range, causing an out-of-bounds heap read past the allocated receive buffer to a local IPC socket.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/sbabic/swupdate/commit/beee2dc… | patch |
| https://www.vulncheck.com/advisories/swupdate-int… | third-party-advisory |
Impacted products
Credits
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CVE-2026-29078 (GCVE-0-2026-29078)
Vulnerability from cvelistv5 – Published: 2026-03-13 17:18 – Updated: 2026-03-16 17:05
VLAI
Title
Integer Underflow in Lexbor ISO‑2022‑JP Encoder
Summary
Lexbor is a web browser engine library. Prior to 2.7.0, the ISO‑2022‑JP encoder in Lexbor fails to reset the temporary size variable between iterations. The statement ctx->buffer_used -= size with a stale size = 3 causes an integer underflow that wraps to SIZE_MAX. Afterwards, memcpy is called with a negative length, leading to an out‑of‑bounds read from the stack and an out‑of‑bounds write to the heap. The source data is partially controllable via the contents of the DOM tree. This vulnerability is fixed in 2.7.0.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/lexbor/lexbor/security/advisor… | x_refsource_CONFIRM |
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CVE-2026-29776 (GCVE-0-2026-29776)
Vulnerability from cvelistv5 – Published: 2026-03-13 17:33 – Updated: 2026-03-16 17:03
VLAI
Title
FreeRDP has an Integer Underflow in update_read_cache_bitmap_order Function of FreeRDP's Core Library
Summary
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, Integer Underflow in update_read_cache_bitmap_order Function of FreeRDP's Core Library This vulnerability is fixed in 3.24.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRDP/FreeRDP/security/advis… | x_refsource_CONFIRM |
| https://github.com/FreeRDP/FreeRDP/commit/a9e0abf… | x_refsource_MISC |
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CVE-2026-30803 (GCVE-0-2026-30803)
Vulnerability from cvelistv5 – Published: 2026-06-17 17:21 – Updated: 2026-06-17 17:58
VLAI
Title
Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers.
Summary
Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers.This issue affects Connext Micro: from 4.0.0 before 4.3.0.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RTI | Connext Micro |
Affected:
4.0.0 , < 4.3.0
(custom)
|
Date Public
2026-06-12 16:21
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No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.