JLSEC-2025-173

    Dashboard / Vulnerabilities / JLSEC-2025-173

    JLSEC-2025-173

    Published: 21 Oct 2025Last Modified: 23 Jul 2026
    Upstream:
    CVE-2025-59375

    Summary: libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a...

    Details: libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.

    References: http://www.openwall.com/lists/oss-security/2025/09/16/2, http://www.openwall.com/lists/oss-security/2026/05/01/5, https://cert-portal.siemens.com/productcert/html/ssa-082556.html, https://cert-portal.siemens.com/productcert/html/ssa-089022.html, https://github.com/libexpat/libexpat/blob/676a4c531ec768732fac215da9730b5f50fbd2bf/expat/Changes#L45-L74, https://github.com/libexpat/libexpat/blob/R_2_7_2/expat/Changes, https://github.com/libexpat/libexpat/issues/1018, https://github.com/libexpat/libexpat/pull/1034, https://issues.oss-fuzz.com/issues/439133977

    Affected packages

    Package

    Name: Expat_jll

    Purl: pkg:julia/Expat_jll?uuid=2e619515-83b5-522b-bb60-26c02a35a201

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.7.3+0

    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
    JLSEC-2025-173 | CVE-DB