{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-1866 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-1866 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-1866 is a critical memory corruption vulnerability in warmcat libwebsockets, published on 3 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-1866 and fix it if it is affected.\n\nWhat it is: CVE-2025-1866 is a critical memory corruption vulnerability in warmcat libwebsockets, published on 3 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-1866 in the wild and no public exploit code.\n\nAffected product: warmcat libwebsockets. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-1866/ (Markdown: https://insights.sbomify.com/CVE-2025-1866/index.md)","id":"CVE-2025-1866","markdown":"https://insights.sbomify.com/CVE-2025-1866/index.md","name":"CVE-2025-1866","record":{"aliases":["GHSA-w9v7-r27g-jrmx"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"libwebsockets library","requires_auth":"none","summary":"Out-of-bounds pointer arithmetic in libwebsockets on Win32 can cause memory corruption, requiring non-default CMake configurations to trigger.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GovTech CSG","cpe":[],"cvss":{"score":10,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"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.\n\nBy default, the affected code is not executed unless one of the following conditions is met:\n\nLWS_WITHOUT_EXTENSIONS (default ON) is manually set to OFF in CMake.\nLWS_WITH_HTTP_STREAM_COMPRESSION (default OFF) is manually set to ON in CMake.\nDespite these conditions, when triggered in affected configurations, this vulnerability may allow attackers to manipulate pointers, potentially leading to memory corruption or unexpected behavior.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Undefined Behavior Due to Out-of-Bounds Pointer Arithmetic in libwebsockets","id":"CVE-2025-1866","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"HTTP Response Smuggling Vulnerability in libhv","id":"CVE-2025-1867"},"packages":[],"prev":{"headline":"Local Privilege Escalation in Virtual CloneDrive Kernel Driver","id":"CVE-2025-1865"},"products":["libwebsockets"],"published":"2025-03-03","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-03-03","vendors":["warmcat"]},"summary":"Out-of-bounds pointer arithmetic in libwebsockets on Win32 can cause memory corruption, requiring non-default CMake configurations to trigger.","url":"https://insights.sbomify.com/CVE-2025-1866/"}