Vulnerability DatabaseCVE-2026-90558
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CVE-2026-90558
Published:September 12, 2026
Updated:September 22, 2026
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.
Related Resources (6)
https://www.vulncheck.com/advisories/sngrep-through-1.8.4-stack-buffer-overflow-via-sip-headers
https://nvd.nist.gov/vuln/detail/CVE-2026-90558
https://github.com/irontec/sngrep
https://github.com/irontec/sngrep/blob/v1.8.4/src/sip_call.c#L260
https://github.com/irontec/sngrep/blob/v1.8.4/src/sip_msg.c#L150
https://github.com/irontec/sngrep/commit/1ff74ee3ab5ff280e8ba976aa8c744dca57eb35b
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Stack-based Buffer Overflow
CWE-121
EPSS
Base Score:
0.51