{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-11931 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-11931 is a low-severity vulnerability in Wolfssl Wolfssl, published on 21 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-11931 and fix it if it is affected.\n\nWhat it is: CVE-2025-11931 is a low-severity vulnerability in Wolfssl Wolfssl, published on 21 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2025-11931 in the wild and no public exploit code.\n\nAffected product: Wolfssl Wolfssl. 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-2025-11931/ (Markdown: https://insights.sbomify.com/CVE-2025-11931/index.md)","id":"CVE-2025-11931","markdown":"https://insights.sbomify.com/CVE-2025-11931/index.md","name":"CVE-2025-11931","record":{"aliases":["DEBIAN-CVE-2025-11931","GHSA-h957-386q-gm5j","JLSEC-2026-686","UBUNTU-CVE-2025-11931"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"wolfSSL cryptographic library","requires_auth":"none","summary":"An integer underflow in wolfSSL's XChaCha20-Poly1305 decryption allows out-of-bounds access, potentially leading to code execution or crashes when the function is called directly.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"wolfSSL","cpe":[{"product":"wolfssl","vendor":"wolfssl"}],"cvss":{"score":2.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"}],"description":"Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt. This issue is hit specifically with a call to the function wc_XChaCha20Poly1305_Decrypt() which is not used with TLS connections, only from direct calls from an application.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt","id":"CVE-2025-11931","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"wolfssl:wolfssl","products":["wolfssl:wolfssl"],"type":"integer_overflow","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"Timing Side-Channel in PSK Binder Verification","id":"CVE-2025-11932"},"packages":[],"prev":{"headline":"CSS \u0026 JavaScript Toolbox \u003c= 12.0.5 - Authenticated (Admin+) Stored Cross-Site Scripting","id":"CVE-2025-11928"},"products":["wolfSSL"],"published":"2025-11-21","related":[{"cvss_score":10,"headline":"Buffer overread in domain name matching","id":"CVE-2024-5991","kev_date_added":null,"published":"2024-08-27"},{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2021-37155","kev_date_added":null,"published":"2021-07-21"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2020-36177","kev_date_added":null,"published":"2021-01-06"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2014-2896","kev_date_added":null,"published":"2020-01-28"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2014-2897","kev_date_added":null,"published":"2020-01-28"},{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2014-2898","kev_date_added":null,"published":"2020-01-28"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-16748","kev_date_added":null,"published":"2019-09-24"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-12-08","vendors":["wolfSSL"]},"summary":"An integer underflow in wolfSSL's XChaCha20-Poly1305 decryption allows out-of-bounds access, potentially leading to code execution or crashes when the function is called directly.","url":"https://insights.sbomify.com/CVE-2025-11931/"}