CVE-2025-1866 (GCVE-0-2025-1866)
Vulnerability from cvelistv5 – Published: 2025-03-03 08:44 – Updated: 2025-03-03 16:34
VLAI
EPSS
VEX
Title
Undefined Behavior Due to Out-of-Bounds Pointer Arithmetic in libwebsockets
Summary
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows Pointer Manipulation, potentially leading to out-of-bounds memory access. This issue affects libwebsockets before 4.3.4 and is present in code built specifically for the Win32 platform.
By default, the affected code is not executed unless one of the following conditions is met:
LWS_WITHOUT_EXTENSIONS (default ON) is manually set to OFF in CMake.
LWS_WITH_HTTP_STREAM_COMPRESSION (default OFF) is manually set to ON in CMake.
Despite these conditions, when triggered in affected configurations, this vulnerability may allow attackers to manipulate pointers, potentially leading to memory corruption or unexpected behavior.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-03 16:34 UTC
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
GovTech CSG
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/warmcat/libwebsockets/commit/3… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| warmcat | libwebsockets |
Affected:
0 , < <4.3.4
(git)
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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