{
  "cveId": "CVE-2023-40477",
  "url": "https://patchblox.com/security/cve/CVE-2023-40477",
  "summary": "CVE-2023-40477 is fixed in 8 products on 2 platforms, first by WinRAR 6.23.0, released August 2, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "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.",
  "published": "2023-08-24T17:00:00Z",
  "severity": "Medium",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "cwe": "CWE-129: Improper Validation of Array Index",
  "epss": 0.1062,
  "epssPercentile": 0.9585,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2023-40477",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "WinRAR",
      "fixedVersion": "6.23.0",
      "fix": "WinRAR 6.23.0",
      "url": "https://patchblox.com/security/fix/windows-app/rarlab.winrar-6.23.0",
      "released": "2023-08-02T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libclamunrar",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.0.3-1~deb12u1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    },
    {
      "platform": "linux",
      "product": "libclamunrar",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.0.3-1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    },
    {
      "platform": "linux",
      "product": "libclamunrar",
      "release": "Debian 14",
      "fixedVersion": "1.0.3-1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    },
    {
      "platform": "linux",
      "product": "libclamunrar",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.103.11-0ubuntu0.22.04.1",
      "fix": "libclamunrar 0.103.11-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libclamunrar-0.103.11-0ubuntu0.22.04.1",
      "released": "2023-08-24T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libclamunrar9",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.103.11-0ubuntu0.20.04.1",
      "fix": "libclamunrar9 0.103.11-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libclamunrar9-0.103.11-0ubuntu0.20.04.1",
      "released": "2023-08-24T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libclamunrar9",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.103.11-0ubuntu0.22.04.1",
      "fix": "libclamunrar9 0.103.11-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libclamunrar9-0.103.11-0ubuntu0.22.04.1",
      "released": "2023-08-24T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libunrar-headers",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:6.1.5-1ubuntu0.1",
      "fix": "libunrar-headers 1:6.1.5-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libunrar-headers-1-6.1.5-1ubuntu0.1",
      "released": "2024-04-28T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libunrar5",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:5.6.6-2ubuntu0.1",
      "fix": "libunrar5 1:5.6.6-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libunrar5-1-5.6.6-2ubuntu0.1",
      "released": "2024-04-28T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libunrar5",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:6.1.5-1ubuntu0.1",
      "fix": "libunrar5 1:6.1.5-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libunrar5-1-6.1.5-1ubuntu0.1",
      "released": "2024-04-28T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "rar",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2:6.23-1~deb12u1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    },
    {
      "platform": "linux",
      "product": "rar",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2:6.23-1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    },
    {
      "platform": "linux",
      "product": "rar",
      "release": "Debian 14",
      "fixedVersion": "2:6.23-1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    },
    {
      "platform": "linux",
      "product": "rar",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:6.23-1~20.04.1",
      "fix": "rar 2:6.23-1~20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-rar-2-6.23-1-20.04.1",
      "released": "2023-08-24T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rar",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2:6.23-1~22.04.1",
      "fix": "rar 2:6.23-1~22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-rar-2-6.23-1-22.04.1",
      "released": "2023-08-24T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rar",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2:6.23-1",
      "fix": "rar 2:6.23-1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-rar-2-6.23-1",
      "released": "2023-08-24T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rar",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2:6.23-1",
      "fix": "rar 2:6.23-1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-rar-2-6.23-1",
      "released": "2023-08-25T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rar",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2:6.23-1",
      "fix": "rar 2:6.23-1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-rar-2-6.23-1",
      "released": "2023-08-25T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "unrar",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:5.6.6-2ubuntu0.1",
      "fix": "unrar 1:5.6.6-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-unrar-1-5.6.6-2ubuntu0.1",
      "released": "2024-04-28T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "unrar",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:6.1.5-1ubuntu0.1",
      "fix": "unrar 1:6.1.5-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-unrar-1-6.1.5-1ubuntu0.1",
      "released": "2024-04-28T17:15:00Z"
    },
    {
      "platform": "linux",
      "product": "unrar-nonfree",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:6.2.6-1\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    },
    {
      "platform": "linux",
      "product": "unrar-nonfree",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:6.2.10-1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    },
    {
      "platform": "linux",
      "product": "unrar-nonfree",
      "release": "Debian 14",
      "fixedVersion": "1:6.2.10-1",
      "fix": "DEBIAN-CVE-2023-40477",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-40477",
      "released": "2024-05-03T03:15:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-12T01:51:14Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}