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unrar-nonfree vulnerabilities

Vulnerabilities published for unrar-nonfree in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 6

  1. CVE-2026-14191

    High · CVSS 7.8EPSS 0.44%No fix published

    WinRAR / UnRAR RAR5 recovery-volume (.rev) out-of-bounds heap write in RecVolumes5::ReadHeader

    An out-of-bounds heap write exists in the RAR5 recovery-volume (.rev) parser in WinRAR and UnRAR (RecVolumes5::ReadHeader in recvol5.cpp). The RecItems vector is sized only when the first .rev file in a set is processed; subsequent .rev files supply an independent RecNum value that is validated against that file's own TotalCount field but never against the actual size of RecItems. A crafted set of two or more .rev files can therefore write an attacker-controlled 32-bit value (the header's RevCRC field) to RecItems[RecNum] at an attacker-controlled offset up to 65534 * sizeof(RecVolItem) bytes past the allocation, corrupting adjacent heap obje

    Published Updated
  2. CVE-2025-52331

    Medium · CVSS 6.1EPSS 0.33%No fix published

    CVE-2025-52331

    Cross-site scripting (XSS) vulnerability in the generate report functionality in Rarlab WinRAR 7.11, allows attackers to disclose user information such as the computer username, generated report directory, and IP address. The generate report command includes archived file names without validation in the HTML report, which allows potentially malicious HTML tags to be injected into the report. User interaction is required. User must use the "generate report" functionality and open the report.

    Published Updated
  3. CVE-2023-40477

    High · CVSS 7.8EPSS 11.38%Fix available

    RARLAB WinRAR Recovery Volume Improper Validation of Array Index Remote Code Execution Vulnerability

    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 cur

    • Update to 1:5.6.6-2ubuntu0.1
    Published Updated

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