{"id":"CVE-2026-20408","aliases":["EUVD-2026-5129","GHSA-h372-rxq3-5q6p"],"status":"published","title":"In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead...","description":"In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00294,"percentile":0.22322,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-787"],"published":"2026-02-02T08:14:56Z","modified":"2026-06-17T10:17:22Z","products":[{"vendor":"mediatek","product":"software_development_kit"},{"vendor":"mediatek, inc.","product":"mediatek chipset"},{"vendor":"openwrt","product":"openwrt"}],"references":[{"url":"https://corp.mediatek.com/product-security-bulletin/February-2026","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20408"},{"url":"https://github.com/advisories/GHSA-h372-rxq3-5q6p"}],"sources":{"cve":[{"id":"CVE-2026-20408","description":"In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.","status":"published","published":"2026-02-02T08:14:56.694Z","modified":"2026-03-30T13:02:57.756Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T13:35:44.571002Z"}],"euvd":[{"id":"EUVD-2026-5129","description":"In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.","status":"published","published":"2026-02-02T08:14:56Z","modified":"2026-03-30T13:02:57Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:25:26.376466Z"}],"ghsa":[{"id":"GHSA-h372-rxq3-5q6p","title":"In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead...","description":"In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.","status":"published","published":"2026-02-02T09:30:31Z","modified":"2026-02-04T15:30:28Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T15:06:02.555847Z"}],"nvd":[{"id":"CVE-2026-20408","description":"In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.","status":"published","published":"2026-02-02T09:15:55.657Z","modified":"2026-06-17T10:17:22.47Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:12:04.769088Z"}]}}