{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-70343 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-70343 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-70343 is a high-severity memory corruption vulnerability in Microsoft MPEG-2 Video Extension, 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-2026-70343 and fix it if it is affected.\n\nWhat it is: CVE-2026-70343 is a high-severity memory corruption vulnerability in Microsoft MPEG-2 Video Extension, 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-2026-70343 in the wild and no public exploit code.\n\nAffected product: Microsoft MPEG-2 Video Extension. 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-2026-70343/ (Markdown: https://insights.sbomify.com/CVE-2026-70343/index.md)","id":"CVE-2026-70343","markdown":"https://insights.sbomify.com/CVE-2026-70343/index.md","name":"CVE-2026-70343","record":{"aliases":["GHSA-cghg-475q-8v9j"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MPEG-2 Video Extension","requires_auth":"none","summary":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows remote attackers to execute arbitrary code.","user_interaction":"required","vuln_class":"memory_corruption"},"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-122","name":"Heap-based Buffer Overflow"}],"description":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension 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":"Microsoft MPEG-2 Video Extension Remote Code Execution Vulnerability","id":"CVE-2026-70343","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Installer Elevation of Privilege Vulnerability","id":"CVE-2026-70344"},"packages":[],"prev":{"headline":"Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability","id":"CVE-2026-70342"},"products":["MPEG-2 Video Extension"],"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":"Heap-based buffer overflow in Microsoft MPEG-2 Video Extension allows remote attackers to execute arbitrary code.","url":"https://insights.sbomify.com/CVE-2026-70343/"}