CRITICAL

CVE-2026-90558

2026-09-12 CVSS v3.1

CVSS

9.8

Description

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.

Weakness (CWE)

CWE-121 Stack-based Buffer Overflow

EPSS Score

0.51%

Probability of exploitation in next 30 days

42.3th percentile

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

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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