{"id":"CVE-2021-28835","aliases":["EUVD-2021-15489","GHSA-m84c-gfw5-ggfh"],"status":"published","title":"Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary...","description":"Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary code via crafted GEM bitmap file.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:R","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00343,"percentile":0.28072,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2023-08-11T00:00:00Z","modified":"2026-06-17T03:46:57Z","products":[{"vendor":"xnview","product":"xnview"}],"references":[{"url":"https://www.xnview.com/en/xnview/#changelog","tags":["x_transferred","Release Notes"]},{"url":"https://newsgroup.xnview.com/viewtopic.php?f=35\u0026t=44679","tags":["x_transferred","Release Notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28835"},{"url":"https://github.com/advisories/GHSA-m84c-gfw5-ggfh"}],"sources":{"cve":[{"id":"CVE-2021-28835","description":"Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary code via crafted GEM bitmap file.","status":"published","published":"2023-08-11T00:00:00Z","modified":"2024-10-09T17:35:30.049Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:R","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-15489","description":"Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary code via crafted GEM bitmap file.","status":"published","published":"2023-08-11T00:00:00Z","modified":"2024-10-09T17:35:30Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:R","level":"high"}],"updated_at":"2026-11-03T00:27:42.985312Z"}],"ghsa":[{"id":"GHSA-m84c-gfw5-ggfh","title":"Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary...","description":"Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary code via crafted GEM bitmap file.","status":"published","published":"2023-08-11T15:30:46Z","modified":"2024-04-04T06:53:26Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:56:46.449942Z"}],"nvd":[{"id":"CVE-2021-28835","description":"Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary code via crafted GEM bitmap file.","status":"published","published":"2023-08-11T14:15:12.73Z","modified":"2026-06-17T03:46:57.94Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}