CVE-2026-90558
sngrep through 1.8.4 Stack Buffer Overflow via SIP Headers
- State
- Published
- Severity
- 9.3 Critical
- Published
- Sep 12, 2026
- Updated
- Sep 14, 2026
- Reserved
- Sep 12, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-121 Stack-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
sngrepirontec |
|
References
- Patch Commitpatch
- https://github.com/irontec/sngrepproduct
- https://github.com/irontec/sngrep/blob/v1.8.4/src/sip_call.c#L260technical-description
- https://github.com/irontec/sngrep/blob/v1.8.4/src/sip_msg.c#L150technical-description
- VulnCheck Advisory: sngrep through 1.8.4 Stack Buffer Overflow via SIP Headersthird-party-advisory
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