{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-0421 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-0421 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-0421 is a high-severity vulnerability in Lenovo ThinkPad L13 Gen 6 2 in 1 BIOS, published on 14 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-0421 and fix it if it is affected.\n\nWhat it is: CVE-2026-0421 is a high-severity vulnerability in Lenovo ThinkPad L13 Gen 6 2 in 1 BIOS, published on 14 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-0421 in the wild and no public exploit code.\n\nAffected product: Lenovo ThinkPad L13 Gen 6 2 in 1 BIOS. 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-2026-0421/ (Markdown: https://insights.sbomify.com/CVE-2026-0421/index.md)","id":"CVE-2026-0421","markdown":"https://insights.sbomify.com/CVE-2026-0421/index.md","name":"CVE-2026-0421","record":{"aliases":["GHSA-5m9v-m547-62qf"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Lenovo ThinkPad BIOS","requires_auth":"high_privilege","summary":"Attackers can bypass Secure Boot protection on specific Lenovo ThinkPad models when configured in User Mode, potentially allowing unauthorized code execution.","user_interaction":"required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"lenovo","cpe":[],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-252","name":"Unchecked Return Value"}],"description":"A potential vulnerability was reported in the BIOS of L13 Gen 6, L13 Gen 6 2-in-1, L14 Gen 6, and L16 Gen 2 ThinkPads which could result in Secure Boot being disabled even when configured as “On” in the BIOS setup menu. This issue only affects systems where Secure Boot is set to User Mode.","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":"Security feature bypass in ThinkPad L13 Gen 6 2 in 1 BIOS","id":"CVE-2026-0421","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in AMD Instinct™ MI210","id":"CVE-2026-0427"},"packages":[],"prev":{"headline":"Missing TLS certificate validation in NETGEAR's ReadyCloud client app","id":"CVE-2026-0420"},"products":["ThinkPad L13 Gen 6 2 in 1 BIOS","ThinkPad L13 Gen 6 BIOS","ThinkPad L14 Gen 6 BIOS","ThinkPad L16 Gen 2 BIOS"],"published":"2026-01-14","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":"2026-02-26","vendors":["Lenovo"]},"summary":"Attackers can bypass Secure Boot protection on specific Lenovo ThinkPad models when configured in User Mode, potentially allowing unauthorized code execution.","url":"https://insights.sbomify.com/CVE-2026-0421/"}