{"id":"CVE-2023-1586","aliases":["EUVD-2023-23818","GHSA-h5r6-2gq4-p8x5"],"status":"published","title":"Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) ...","description":"Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU)  vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0021,"percentile":0.11275,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2023-04-19T18:35:09Z","modified":"2026-06-17T05:28:19Z","products":[{"vendor":"avast","product":"antivirus"},{"vendor":"avast","product":"avast antivirus"},{"vendor":"avg","product":"anti-virus"},{"vendor":"avg","product":"avg antivirus"},{"vendor":"nortonlifelock (gendigital)","product":"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-2023-1586"},{"url":"https://github.com/advisories/GHSA-h5r6-2gq4-p8x5"}],"sources":{"cve":[{"id":"CVE-2023-1586","description":"Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU)  vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11","status":"published","published":"2023-04-19T18:35:09.013Z","modified":"2025-02-05T16:16:16.966Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:35:32.019713Z"}],"euvd":[{"id":"EUVD-2023-23818","description":"Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU)  vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11","status":"published","published":"2023-04-19T18:35:09Z","modified":"2025-02-05T16:16:16Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"medium"}],"updated_at":"2026-11-03T00:04:05.079502Z"}],"ghsa":[{"id":"GHSA-h5r6-2gq4-p8x5","title":"Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) ...","description":"Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU)  vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11","status":"published","published":"2023-04-19T21:30:26Z","modified":"2024-04-04T03:35:22Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"medium"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:56:16.439649Z"}],"nvd":[{"id":"CVE-2023-1586","description":"Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU)  vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11","status":"published","published":"2023-04-19T19:15:06.837Z","modified":"2026-06-17T05:28:19Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:07:56.683259Z"}]}}