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    CVE-2026-90558

    sngrep through 1.8.4 contains stack buffer overflow vulnerabilities in SIP attribute formatting routines when header values exceed the 255-byte buffer limit. Attackers can craft malicious SIP packets with oversized Call-ID, X-Call-ID, or other header fields to overflow stack buffers and cause crashes or execute arbitrary code during packet parsing and rendering.

    Published:Sep 12, 2026
    Last Modified:Sep 12, 2026
    EPS:Sep 12, 2026
    EPSS Score:
    CVSS Score:9.8

    Affected Products

    Vendor
    Irontec
    Product
    Sngrep

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2024-35434 (CVSS 7.5) — Irontec Sngrep v1.8.1 was discovered to contain a heap buffer overflow via the function rtp_check_packet at /s…
    CVE-2024-3120 (CVSS 9) — A stack-buffer overflow vulnerability exists in all versions of sngrep since v1.4.1. The flaw is due to inadeq…
    CVE-2024-3119 (CVSS 9) — A buffer overflow vulnerability exists in all versions of sngrep since v0.4.2, due to improper handling of 'Ca…
    CVE-2023-36192 (CVSS 7.8) — Sngrep v1.6.0 was discovered to contain a heap buffer overflow via the function capture_ws_check_packet at /sr…
    CVE-2023-31981 (CVSS 7.8) — Sngrep v1.6.0 was discovered to contain a stack buffer overflow via the function packet_set_payload at /src/pa…
    CVE-2023-31982 (CVSS 7.8) — Sngrep v1.6.0 was discovered to contain a heap buffer overflow via the function capture_packet_reasm_ip at /sr…

    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