CVE-2023-29542

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    CVE-2023-29542

    Published: 19 Jun 2023Last Modified: 14 Mar 2026

    Summary:

    Details: A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk with .download. This could have led to accidental execution of malicious code. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.

    References: https://www.mozilla.org/security/advisories/mfsa2023-13/, https://www.mozilla.org/security/advisories/mfsa2023-14/, https://www.mozilla.org/security/advisories/mfsa2023-15/, https://bugzilla.mozilla.org/show_bug.cgi?id=1810793, https://bugzilla.mozilla.org/show_bug.cgi?id=1815062

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-29542 | CVE-DB