{"id":"CVE-2026-20525","title":"In Modem, there is a possible system crash due to improper input validation","summary":"In Modem, there is a possible system crash due to improper input validation. 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 n…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-617"],"vendor":"mediatek","product":"mt2716_firmware","affected":["mt2716_firmware","mt6835_firmware","mt6858_firmware","mt6878_firmware","mt6881_firmware","mt6897_firmware","mt6899_firmware","mt6982_firmware","mt6986_firmware","mt6988_firmware","mt6991_firmware","mt6993_firmware","mt8668_firmware","mt8676_firmware","mt8678_firmware","mt8755_firmware","mt8775_firmware","mt8792_firmware","mt8793_firmware","mt8863_firmware","mt8873_firmware","mt8883_firmware"],"published":"2026-10-05","updated":"2026-10-08","sourceUpdated":"2026-10-08T15:23:06.023","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-20525","references":[{"url":"https://www.mediatek.com/product-security-bulletin/October-2026","label":"security@mediatek.com"}],"tags":["nvd","cve.org"],"epss":0.00206,"epssPercentile":0.10531,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-05T10:16:18.568161Z"},"ingestedAt":"2026-10-05T02:10:36.193Z","slug":"CVE-2026-20525","body":"## Overview\n\nIn Modem, there is a possible system crash due to improper input validation. 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: MOLY01870473 / MOLY00814393; Issue ID: MSV-9041.\n\n## Affected\n\n- `mt2716_firmware`\n- `mt6835_firmware`\n- `mt6858_firmware`\n- `mt6878_firmware`\n- `mt6881_firmware`\n- `mt6897_firmware`\n- `mt6899_firmware`\n- `mt6982_firmware`\n- `mt6986_firmware`\n- `mt6988_firmware`\n- `mt6991_firmware`\n- `mt6993_firmware`\n- `mt8668_firmware`\n- `mt8676_firmware`\n- `mt8678_firmware`\n- `mt8755_firmware`\n- `mt8775_firmware`\n- `mt8792_firmware`\n- `mt8793_firmware`\n- `mt8863_firmware`\n- `mt8873_firmware`\n- `mt8883_firmware`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":215750,"id":"CVE-2026-20525","ts":1791199142271,"field":"cvss","old":null,"new":"5.3"},{"seq":215749,"id":"CVE-2026-20525","ts":1791199142271,"field":"severity","old":"none","new":"medium"}]}