{"id":"CVE-2023-40477","aliases":["DEBIAN-CVE-2023-40477","DLA-3542-1","DLA-3543-1","DLA-3653-1","EUVD-2023-45048","GHSA-58vr-f4x9-3h36","MGASA-2023-0258","SUSE-SU-2023:4297-1","SUSE-SU-2023:4415-1","UBUNTU-CVE-2023-40477","USN-6569-1","USN-7349-1","USN-7350-1","openSUSE-SU-2024:13394-1"],"status":"published","title":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability","description":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.1062,"percentile":0.9585,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-129"],"published":"2023-08-25T00:00:00Z","modified":"2026-10-27T04:15:48Z","exploits":[{"source":"pocgithub","id":"wildptr-io/Winrar-CVE-2023-40477-POC","title":"wildptr-io/Winrar-CVE-2023-40477-POC","date":"2023-08-29","url":"https://github.com/wildptr-io/Winrar-CVE-2023-40477-POC"},{"source":"pocgithub","id":"winkler-winsen/Scan_WinRAR","title":"winkler-winsen/Scan_WinRAR","date":"2023-08-29","url":"https://github.com/winkler-winsen/Scan_WinRAR"}],"fixes":[{"ecosystem":"Debian:12","package":"libclamunrar","fixed_in":["1.0.3-1~deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libclamunrar","fixed_in":["1.0.3-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libclamunrar","fixed_in":["1.0.3-1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"rar","fixed_in":["2:6.23-1~deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"rar","fixed_in":["2:6.23-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"rar","fixed_in":["2:6.23-1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"unrar-nonfree","fixed_in":["1:6.2.6-1+deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"unrar-nonfree","fixed_in":["1:6.2.10-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"unrar-nonfree","fixed_in":["1:6.2.10-1"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"unrar-nonfree","fixed_in":["1:5.6.6-1+deb10u4"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"rar","fixed_in":["2:6.23-1~deb10u1"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"libclamunrar","fixed_in":["0.103.10-0+deb10u1"],"sources":["osv"]},{"ecosystem":"Mageia:8","package":"unrar","fixed_in":["6.23-1.mga8.nonfree"],"sources":["osv"]},{"ecosystem":"Mageia:9","package":"unrar","fixed_in":["6.23-1.mga9.nonfree"],"sources":["osv"]},{"ecosystem":"SUSE:Linux 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Party Advisory","VDB Entry","advisory","report"]},{"url":"https://www.win-rar.com/singlenewsview.html?\u0026L=0\u0026tx_ttnews%5Btt_news%5D=232\u0026cHash=c5bf79590657e32554c6683296a8e8aa","tags":["vendor-advisory","x_transferred","Release Notes","advisory","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00009.html","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40477"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-1152"},{"url":"https://github.com/advisories/GHSA-58vr-f4x9-3h36"},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-40477","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2023-0258.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=32205","tags":["report"]},{"url":"https://www.debian.org/lts/security/2023/dla-3535","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234297-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1216625","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2023-40477","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20234415-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-40477","tags":["report"]},{"url":"https://blog.clamav.net/2023/08/clamav-120-feature-version-and-111-102.html","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6569-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-40477","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7349-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-7350-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-30333","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-48579","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-33899","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-40477","title":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability","description":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","status":"published","published":"2024-05-03T02:11:12.905Z","modified":"2025-11-04T19:20:10.675Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-129"],"updated_at":"2026-11-02T14:35:21.971258Z"}],"euvd":[{"id":"EUVD-2023-45048","description":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","status":"published","published":"2024-05-03T02:11:12Z","modified":"2025-11-04T19:20:10Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:22.047381Z"}],"ghsa":[{"id":"GHSA-58vr-f4x9-3h36","title":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution...","description":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","status":"published","published":"2024-05-03T03:30:58Z","modified":"2025-11-04T21:31:30Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-129"],"updated_at":"2026-11-02T15:04:37.024156Z"}],"nvd":[{"id":"CVE-2023-40477","description":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","status":"published","published":"2024-05-03T03:15:20.473Z","modified":"2026-06-17T06:18:03.02Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-129"],"updated_at":"2026-11-02T14:09:12.053868Z"}],"osv":[{"id":"CVE-2023-40477","description":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","status":"published","published":"2024-05-03T03:15:20.473Z","modified":"2026-04-16T04:37:24.835282986Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:33.244128Z"},{"id":"DEBIAN-CVE-2023-40477","description":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.  The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","status":"published","published":"2024-05-03T03:15:20.473Z","modified":"2026-10-26T18:02:06.771173343Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:39.980321Z"},{"id":"UBUNTU-CVE-2023-40477","description":"RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of recovery volumes. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21233.","status":"published","published":"2023-08-25T00:00:00Z","modified":"2026-04-22T14:11:32.853965Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:22.741943Z"},{"id":"DLA-3542-1","title":"unrar-nonfree - security update","status":"published","published":"2023-08-26T00:00:00Z","modified":"2026-03-09T01:20:51.166665Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"DLA-3543-1","title":"rar - security update","status":"published","published":"2023-08-27T00:00:00Z","modified":"2026-03-09T01:18:26.42156Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"DLA-3653-1","title":"libclamunrar - security update","status":"published","published":"2023-11-15T00:00:00Z","modified":"2026-03-09T01:21:18.342324Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"MGASA-2023-0258","title":"Updated unrar packages fix security vulnerability","description":"Recovery Volume Improper Validation of Array Index Remote Code Execution\nVulnerability. (CVE-2023-40477)\n","status":"published","published":"2023-09-11T13:07:54Z","modified":"2026-04-16T04:43:59.931410274Z","updated_at":"2026-11-02T15:49:42.263076Z"},{"id":"openSUSE-SU-2024:13394-1","title":"clamav-0.103.11-2.1 on GA media","description":"These are all security issues fixed in the clamav-0.103.11-2.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:15:08.789942Z","updated_at":"2026-11-02T16:58:36.327643Z"},{"id":"SUSE-SU-2023:4297-1","title":"Security update for clamav","description":"This update for clamav fixes the following issues:\n\n- Updated to version 0.103.11:\n\n  - CVE-2023-40477: Updated libclamunrar dependency to version 6.2.12\n    (bsc#1216625).\n","status":"published","published":"2023-10-31T08:31:47Z","modified":"2026-02-04T03:25:55.628486Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"SUSE-SU-2023:4415-1","title":"Security update for clamav","description":"This update for clamav fixes the following issues:\n\n- Updated to version 0.103.11:\n\n  - CVE-2023-40477: Updated libclamunrar dependency to version 6.2.12\n    (bsc#1216625).\n","status":"published","published":"2023-11-10T17:15:35Z","modified":"2026-02-04T02:56:49.216776Z","updated_at":"2026-11-02T15:53:53.865042Z"},{"id":"USN-6569-1","title":"libclamunrar vulnerabilities","description":"it was discovered that libclamunrar incorrectly handled directories when\nextracting RAR archives. A remote attacker could possibly use this issue to\noverwrite arbitrary files and execute arbitrary code. This issue only\naffected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 23.04.\n(CVE-2022-30333)\n\nIt was discovered that libclamunrar incorrectly validated certain\nstructures when extracting RAR archives. A remote attacker could possibly\nuse this issue to execute arbitrary code. (CVE-2023-40477)\n","status":"published","published":"2024-01-08T18:05:14Z","modified":"2026-10-27T04:15:36.794084149Z","updated_at":"2026-11-02T16:58:17.305935Z"},{"id":"USN-7349-1","title":"rar vulnerabilities","description":"It was discovered that RAR incorrectly handled certain paths. If a user or\nautomated system were tricked into extracting a specially crafted RAR\narchive, a remote attacker could possibly use this issue to write arbitrary\nfiles outside of the targeted directory. (CVE-2022-30333)\n\nIt was discovered that RAR incorrectly handled certain recovery volumes. If\na user or automated system were tricked into extracting a specially crafted\nRAR archive, a remote attacker could possibly use this issue to execute\narbitrary code. (CVE-2023-40477)\n","status":"published","published":"2025-03-12T16:11:59Z","modified":"2026-10-27T04:15:47.132136662Z","updated_at":"2026-11-02T16:58:19.988474Z"},{"id":"USN-7350-1","title":"unrar-nonfree vulnerabilities","description":"It was discovered that UnRAR incorrectly handled certain paths. If a user\nor automated system were tricked into extracting a specially crafted RAR\narchive, a remote attacker could possibly use this issue to write arbitrary\nfiles outside of the targeted directory. (CVE-2022-30333, CVE-2022-48579)\n\nIt was discovered that UnRAR incorrectly handled certain recovery volumes.\nIf a user or automated system were tricked into extracting a specially\ncrafted RAR archive, a remote attacker could possibly use this issue to\nexecute arbitrary code. (CVE-2023-40477)\n\nSiddharth Dushantha discovered that UnRAR incorrectly handled ANSI escape\nsequences when writing screen output. If a user or automated system were\ntricked into processing a specially crafted RAR archive, a remote attacker\ncould possibly use this issue to spoof screen output or cause a denial of\nservice. (CVE-2024-33899)\n","status":"published","published":"2025-03-12T16:19:29Z","modified":"2026-10-27T04:15:48.83070674Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}