{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-97631 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-97631 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-97631 is a critical vulnerability in TianoCore EDK2, published on 22 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-97631 and fix it if it is affected.\n\nWhat it is: CVE-2026-97631 is a critical vulnerability in TianoCore EDK2, published on 22 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-97631 in the wild and no public exploit code.\n\nAffected product: TianoCore EDK2. 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-2026-97631/ (Markdown: https://insights.sbomify.com/CVE-2026-97631/index.md)","id":"CVE-2026-97631","markdown":"https://insights.sbomify.com/CVE-2026-97631/index.md","name":"CVE-2026-97631","record":{"aliases":["DEBIAN-CVE-2026-97631","UBUNTU-CVE-2026-97631"],"analysis":null,"analysis_generated_by":null,"assigner":"TianoCore","cpe":[],"cvss":{"score":9.5,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-131","name":"Incorrect Calculation of Buffer Size"},{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"EDK2 contains a vulnerability in BIOS where a user may cause “Out-of-bounds\nWrite”, Classic\nBuffer Overflow, and “Incorrect Calculation of Buffer Size” by remote access. Successful exploitation of this vulnerability\ncan lead to arbitrary\ncode execution. It could also impact\nConfidentiality,\nIntegrity,\nand Availability.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-10-28","github_poc":3,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-10-28T13:13:57Z","kind":"github_poc","ref":"https://github.com/slabbdev/uefi-pxe-cve-2026-97631","stars":1,"title":null},{"date":"2026-10-29T00:49:51Z","kind":"github_poc","ref":"https://github.com/Try2Take/CVE-2026-97631-PoC","stars":0,"title":"An educational laboratory for studying a PXE network-boot vulnerability in EDK II / OVMF. It builds a pinned EDK II revision, boots a UEFI virtual machine in QEMU, and includes Python proof-of-concept scripts for investigating denial of service (DoS) and memory corruption."},{"date":"2026-10-29T16:02:54Z","kind":"github_poc","ref":"https://github.com/RayanZiani/Bootjack","stars":0,"title":"CVE-2026-97631 C "}],"tier":"poc_unverified"},"has_fix":false,"headline":"Pre-boot RCE in EDK II PXE driver","id":"CVE-2026-97631","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Event Tickets and Registration \u003c= 5.29.5 - Authenticated (Contributor+) SQL Injection via 'orderby' Parameter","id":"CVE-2026-97634"},"packages":[],"prev":{"headline":"Cross-site scripting in FV Flowplayer Video Player","id":"CVE-2026-97630"},"products":["EDK2"],"published":"2026-10-22","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-28","vendors":["TianoCore"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-97631/"}