CVE Feed

    Dashboard / CVE / CVE-2023-45322

    CVE-2023-45322

    libxml2 through 2.11.5 has a use-after-free that can only occur after a certain memory allocation fails. This occurs in xmlUnlinkNode in tree.c. NOTE: the vendor's position is "I don't think these issues are critical enough to warrant a CVE ID ... because an attacker typically can't control when memory allocations fail."

    Published:Aug 23, 2023
    Last Modified:Nov 3, 2025
    EPS:Oct 6, 2023
    EPSS Score:0.00076
    CVSS Score:6.5

    Affected Products

    Vendor
    Xmlsoft
    Product
    Libxml2

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-86144 (CVSS 5.6) — In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlag…
    CVE-2026-86143 (CVSS 6.9) — In xmlIO in libxml2 before 2.15.4, an inconsistency in xmlOutputWriteCallback and xmlBufUse causes negative le…
    CVE-2026-86142 (CVSS 6.9) — In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval …
    CVE-2026-86141 (CVSS 2.9) — xmlregexp in libxml2 before 2.15.4 has a NULL pointer dereference in xmlRegNewParserCtxt after a strdup failur…
    CVE-2026-86140 (CVSS 8) — In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.…
    CVE-2026-86139 (CVSS 6.9) — In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow.…
    CVE-2026-86138 (CVSS 6.9) — In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer …
    CVE-2026-86137 (CVSS 2.9) — In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the N…
    CVE-2026-11979 (CVSS 1.8) — libxml2 is vulnerable to multiple stack-based buffer overflows in the xmlcatalog utility when running in --she…
    CVE-2026-6732 (CVSS 6.5) — A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Sche…

    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