{"answers":{"affected":"It affects 25 products.","exploited":"There is no known exploitation of CVE-2026-20586 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20586 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20586 is a high-severity memory corruption vulnerability in MediaTek, Inc. MediaTek chipset, published on 5 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-2026-20586 and fix it if it is affected.\n\nWhat it is: CVE-2026-20586 is a high-severity memory corruption vulnerability in MediaTek, Inc. MediaTek chipset, published on 5 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-2026-20586 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-2026-20586/ (Markdown: https://insights.sbomify.com/CVE-2026-20586/index.md)","id":"CVE-2026-20586","markdown":"https://insights.sbomify.com/CVE-2026-20586/index.md","name":"CVE-2026-20586","record":{"aliases":["GHSA-32jv-4xgq-q975"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MediaTek chipset","requires_auth":"none","summary":"A missing bounds check in the MediaTek vdec component allows remote attackers to escalate privileges via an out-of-bounds write, requiring user interaction.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"MediaTek","cpe":[{"product":"mt2718_firmware","vendor":"mediatek"},{"product":"mt6768_firmware","vendor":"mediatek"},{"product":"mt6769_firmware","vendor":"mediatek"},{"product":"mt6789_firmware","vendor":"mediatek"},{"product":"mt6833_firmware","vendor":"mediatek"},{"product":"mt6855_firmware","vendor":"mediatek"},{"product":"mt6877_firmware","vendor":"mediatek"},{"product":"mt8186_firmware","vendor":"mediatek"},{"product":"mt8188_firmware","vendor":"mediatek"},{"product":"mt8189_firmware","vendor":"mediatek"},{"product":"mt8195_firmware","vendor":"mediatek"},{"product":"mt8196_firmware","vendor":"mediatek"},{"product":"mt8367_firmware","vendor":"mediatek"},{"product":"mt8391_firmware","vendor":"mediatek"},{"product":"mt8395_firmware","vendor":"mediatek"},{"product":"mt8668_firmware","vendor":"mediatek"},{"product":"mt8676_firmware","vendor":"mediatek"},{"product":"mt8678_firmware","vendor":"mediatek"},{"product":"mt8696_firmware","vendor":"mediatek"},{"product":"mt8781_firmware","vendor":"mediatek"},{"product":"mt8788e_firmware","vendor":"mediatek"},{"product":"mt8792_firmware","vendor":"mediatek"},{"product":"mt8793_firmware","vendor":"mediatek"},{"product":"mt8799_firmware","vendor":"mediatek"},{"product":"mt8910_firmware","vendor":"mediatek"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.","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":"Memory corruption in MediaTek chipset","id":"CVE-2026-20586","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":"Privilege escalation in MediaTek chipset","id":"CVE-2026-20587"},"packages":[],"prev":{"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20579"},"products":["MediaTek chipset"],"published":"2026-10-05","related":[{"cvss_score":8.4,"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20521","kev_date_added":null,"published":"2026-10-05"},{"cvss_score":8.4,"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20501","kev_date_added":null,"published":"2026-09-07"},{"cvss_score":8.4,"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20502","kev_date_added":null,"published":"2026-09-07"},{"cvss_score":6.7,"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20530","kev_date_added":null,"published":"2026-10-05"},{"cvss_score":6.7,"headline":"Use after free in MediaTek chipset","id":"CVE-2026-20542","kev_date_added":null,"published":"2026-10-05"},{"cvss_score":6.7,"headline":"Memory corruption in MediaTek chipset","id":"CVE-2026-20579","kev_date_added":null,"published":"2026-10-05"}],"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":"total"},"state":"PUBLISHED","updated":"2026-10-21","vendors":["MediaTek, Inc."]},"summary":"A missing bounds check in the MediaTek vdec component allows remote attackers to escalate privileges via an out-of-bounds write, requiring user interaction.","url":"https://insights.sbomify.com/CVE-2026-20586/"}