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    CVE-2022-23547

    PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. This issue is similar to GHSA-9pfh-r8x4-w26w. Possible buffer overread when parsing a certain STUN message. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as commit in the master branch.

    Published:Dec 23, 2022
    Last Modified:Nov 4, 2025
    EPS:Dec 23, 2022
    EPSS Score:0.00208
    CVSS Score:6.5

    Affected Products

    Vendor
    Pjsip
    Product
    Pjsip

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers
    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-40892 (CVSS 8.1) — PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack bu…
    CVE-2026-40614 (CVSS 8.5) — PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is a…
    CVE-2026-33069 (CVSS 6.9) — PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a …
    CVE-2026-32945 (CVSS 8.4) — PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a …
    CVE-2026-32942 (CVSS 8) — PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below contain…
    CVE-2026-28799 (CVSS 8.7) — PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap u…
    CVE-2026-29068 (CVSS 8.7) — PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, there is…
    CVE-2026-26967 (CVSS 8.1) — PJSIP is a free and open source multimedia communication library written in C. In versions 2.16 and below, the…
    CVE-2026-26203 (CVSS 5.1) — PJSIP is a free and open source multimedia communication library. Versions prior to 2.17 have a critical heap …
    CVE-2026-25994 (CVSS 8.1) — PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a buffer o…

    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