{"id":"CVE-2022-4173","aliases":["EUVD-2022-51534","GHSA-33r9-qfg8-468w"],"status":"published","title":"Avast and AVG Antivirus for Windows vulnerable to Privilege Escalation","description":"A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00726,"percentile":0.54412,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2022-12-05T23:15:33Z","modified":"2026-06-17T05:20:10Z","products":[{"vendor":"avast","product":"avast"},{"vendor":"avast","product":"avg_antivirus"},{"vendor":"nortonlifelock","product":"avast and avg antivirus"}],"references":[{"url":"https://support.norton.com/sp/static/external/tools/security-advisories.html","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-4173"},{"url":"https://github.com/advisories/GHSA-33r9-qfg8-468w"}],"sources":{"cve":[{"id":"CVE-2022-4173","title":"Avast and AVG Antivirus for Windows vulnerable to Privilege Escalation","description":"A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.\n","status":"published","published":"2022-12-05T23:15:33.724Z","modified":"2025-04-14T17:57:04.339Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:34:37.932195Z"}],"euvd":[{"id":"EUVD-2022-51534","description":"A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.\n","status":"published","published":"2022-12-05T23:15:33Z","modified":"2025-04-14T17:57:04Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:33.06705Z"}],"ghsa":[{"id":"GHSA-33r9-qfg8-468w","title":"A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an...","description":"A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.","status":"published","published":"2022-12-06T00:30:15Z","modified":"2023-02-01T05:03:21Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:50:03.389119Z"}],"nvd":[{"id":"CVE-2022-4173","description":"A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.\n","status":"published","published":"2022-12-06T00:15:10.303Z","modified":"2026-06-17T05:20:10.123Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:07:33.239526Z"}]}}