{"id":"CVE-2024-5803","aliases":["EUVD-2024-46951","GHSA-ccfh-v7cp-3943"],"status":"published","title":"Local privelage escalation via COM hijacking","description":"The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to escalate privileges via an COM hijack in a time-of-check to time-of-use (TOCTOU) when self protection is disabled.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0011,"percentile":0.01265,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2024-10-03T14:20:01Z","modified":"2026-06-17T08:16:40Z","products":[{"vendor":"avast","product":"antivirus"},{"vendor":"avg","product":"avg_anti-virus"},{"vendor":"avg/avast","product":"antivirus"}],"references":[{"url":"https://support.norton.com/sp/static/external/tools/security-advisories.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-5803"},{"url":"https://github.com/advisories/GHSA-ccfh-v7cp-3943"}],"sources":{"cve":[{"id":"CVE-2024-5803","title":"Local privelage escalation via COM hijacking","description":"The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to escalate privileges via an COM hijack in a time-of-check to time-of-use (TOCTOU) when self protection is disabled.","status":"published","published":"2024-10-03T14:20:01.775Z","modified":"2024-10-03T15:38:40.784Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:34:00.929382Z"}],"euvd":[{"id":"EUVD-2024-46951","description":"The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to escalate privileges via an COM hijack in a time-of-check to time-of-use (TOCTOU) when self protection is disabled.","status":"published","published":"2024-10-03T14:20:01Z","modified":"2024-10-03T15:38:40Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:27:54.233481Z"}],"ghsa":[{"id":"GHSA-ccfh-v7cp-3943","title":"The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to...","description":"The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to escalate privileges via an COM hijack in a time-of-check to time-of-use (TOCTOU) when self protection is disabled.","status":"published","published":"2024-10-03T15:30:50Z","modified":"2024-10-03T15:30:51Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:58:24.112371Z"}],"nvd":[{"id":"CVE-2024-5803","description":"The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to escalate privileges via an COM hijack in a time-of-check to time-of-use (TOCTOU) when self protection is disabled.","status":"published","published":"2024-10-03T15:15:15.31Z","modified":"2026-06-17T08:16:40.753Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:10:30.673028Z"}]}}