CVE-2026-90558

critical · 9.3

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.

9.3

CVSS

0.9%

EPSS (exploit prob.)

59th

EPSS percentile

2026-09-12

Published

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-121

References

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
https://www.vulncheck.com/advisories/sngrep-through-1.8.4-stack-buffer-overflow-via-sip-headers

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-90558