{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2026-20494 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20494 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20494 is a medium-severity vulnerability in MediaTek, Inc. MediaTek chipset, published on 3 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-20494 and fix it if it is affected.\n\nWhat it is: CVE-2026-20494 is a medium-severity vulnerability in MediaTek, Inc. MediaTek chipset, published on 3 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-20494 in the wild and no public exploit code.\n\nAffected product: MediaTek, Inc. MediaTek chipset. 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-2026-20494/ (Markdown: https://insights.sbomify.com/CVE-2026-20494/index.md)","id":"CVE-2026-20494","markdown":"https://insights.sbomify.com/CVE-2026-20494/index.md","name":"CVE-2026-20494","record":{"aliases":["GHSA-p939-jv8f-p7rc"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"MediaTek chipset","requires_auth":"low_privilege","summary":"A missing bounds check in MediaTek chipset Wi-Fi firmware allows local attackers with System privileges to read out-of-bounds memory, disclosing sensitive information.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"MediaTek","cpe":[{"product":"mt6890_firmware","vendor":"mediatek"},{"product":"mt6988_firmware","vendor":"mediatek"},{"product":"mt6990_firmware","vendor":"mediatek"}],"cvss":{"score":5.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"In wifi, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10960006 /  BORA00155314, BORA00155001, BORA00154907; Issue ID: MSV-7570.","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":"Information disclosure in MediaTek chipset","id":"CVE-2026-20494","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Missing authorization in MediaTek chipset","id":"CVE-2026-20495"},"packages":[],"prev":{"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20493"},"products":["MediaTek chipset"],"published":"2026-08-03","related":[{"cvss_score":8,"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20452","kev_date_added":null,"published":"2026-06-01"},{"cvss_score":4.4,"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20493","kev_date_added":null,"published":"2026-08-03"}],"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":"2026-08-03","vendors":["MediaTek, Inc."]},"summary":"A missing bounds check in MediaTek chipset Wi-Fi firmware allows local attackers with System privileges to read out-of-bounds memory, disclosing sensitive information.","url":"https://insights.sbomify.com/CVE-2026-20494/"}