{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-108400 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-108400 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-108400 is a high-severity vulnerability in Microsoft HEVC Video Extensions, published on 13 Oct 2026. 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-2026-108400 and fix it if it is affected.\n\nWhat it is: CVE-2026-108400 is a high-severity vulnerability in Microsoft HEVC Video Extensions, published on 13 Oct 2026. 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-2026-108400 in the wild and no public exploit code.\n\nAffected product: Microsoft HEVC Video Extensions. 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-2026-108400/ (Markdown: https://insights.sbomify.com/CVE-2026-108400/index.md)","id":"CVE-2026-108400","markdown":"https://insights.sbomify.com/CVE-2026-108400/index.md","name":"CVE-2026-108400","record":{"aliases":["GHSA-5m3f-9xq8-mc4f"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Windows HEVC Codec","requires_auth":"none","summary":"An integer overflow in the Windows HEVC codec allows remote attackers to execute arbitrary code via malicious media files.","user_interaction":"required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"Integer overflow or wraparound in Microsoft Windows Codecs Library allows an unauthorized attacker to execute code over a network.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"HEVC Video Extensions Remote Code Execution Vulnerability","id":"CVE-2026-108400","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Microsoft Office Word Remote Code Execution Vulnerability","id":"CVE-2026-108426"},"packages":[],"prev":{"headline":"Windows Hyper-V Elevation of Privilege Vulnerability","id":"CVE-2026-108399"},"products":["HEVC Video Extensions","HEVC Video Extensions for Licensed Applications","HEVC Video Extensions from Device Manufacturer"],"published":"2026-10-13","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Microsoft"]},"summary":"An integer overflow in the Windows HEVC codec allows remote attackers to execute arbitrary code via malicious media files.","url":"https://insights.sbomify.com/CVE-2026-108400/"}