CVE-2026-90558criticalCWE-121

CVE-2026-90558: critical vulnerability in irontec sngrep

sngrep through 1.8.4 Stack Buffer Overflow via SIP Headers

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.3epss 0.9%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
irontec · sngrep
Related CVEs — irontec sngrep

In the same product, most dangerous first.

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