{"answers":{"affected":"It affects 19 products.","exploited":"There is no known exploitation of CVE-2026-20431 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-20431 is a medium-severity denial of service vulnerability in MediaTek, Inc. MediaTek chipset, published on 7 Apr 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-2026-20431 and fix it if it is affected.\n\nWhat it is: CVE-2026-20431 is a medium-severity denial of service vulnerability in MediaTek, Inc. MediaTek chipset, published on 7 Apr 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-2026-20431 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-2026-20431/ (Markdown: https://insights.sbomify.com/CVE-2026-20431/index.md)","id":"CVE-2026-20431","markdown":"https://insights.sbomify.com/CVE-2026-20431/index.md","name":"CVE-2026-20431","record":{"aliases":["A-480745369","ASB-A-480745369","GHSA-6pq9-8556-qr3w","M-MOLY01106496"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"MediaTek chipset","requires_auth":"none","summary":"A logic error in MediaTek modem firmware allows remote attackers to cause a system crash via a rogue base station, requiring no user interaction.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"MediaTek","cpe":[{"product":"mt6813_firmware","vendor":"mediatek"},{"product":"mt6815_firmware","vendor":"mediatek"},{"product":"mt6835_firmware","vendor":"mediatek"},{"product":"mt6878_firmware","vendor":"mediatek"},{"product":"mt6897_firmware","vendor":"mediatek"},{"product":"mt6899_firmware","vendor":"mediatek"},{"product":"mt6986_firmware","vendor":"mediatek"},{"product":"mt6991_firmware","vendor":"mediatek"},{"product":"mt6993_firmware","vendor":"mediatek"},{"product":"mt8668_firmware","vendor":"mediatek"},{"product":"mt8676_firmware","vendor":"mediatek"},{"product":"mt8678_firmware","vendor":"mediatek"},{"product":"mt8755_firmware","vendor":"mediatek"},{"product":"mt8775_firmware","vendor":"mediatek"},{"product":"mt8792_firmware","vendor":"mediatek"},{"product":"mt8793_firmware","vendor":"mediatek"},{"product":"mt8863_firmware","vendor":"mediatek"},{"product":"mt8873_firmware","vendor":"mediatek"},{"product":"mt8883_firmware","vendor":"mediatek"}],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"In Modem, there is a possible system crash due to a logic error. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01106496; Issue ID: MSV-4467.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Denial of service in MediaTek chipset","id":"CVE-2026-20431","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20432"},"packages":[],"prev":{"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20430"},"products":["MediaTek chipset"],"published":"2026-04-07","related":[{"cvss_score":5.5,"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20476","kev_date_added":null,"published":"2026-08-03"},{"cvss_score":4.4,"headline":"Denial of service in MediaTek chipset","id":"CVE-2026-20490","kev_date_added":null,"published":"2026-08-03"},{"cvss_score":4.3,"headline":"Integer overflow in MediaTek chipset","id":"CVE-2026-20446","kev_date_added":null,"published":"2026-04-07"}],"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":"2026-04-07","vendors":["MediaTek, Inc."]},"summary":"A logic error in MediaTek modem firmware allows remote attackers to cause a system crash via a rogue base station, requiring no user interaction.","url":"https://insights.sbomify.com/CVE-2026-20431/"}