Summary
generated automatically from NVD datasngrep through version 1.8.4 has stack buffer overflow flaws (CWE-121) in its routines that format SIP attributes. When a header value such as Call-ID or X-Call-ID exceeds the 255-byte buffer, a specially crafted SIP packet can overflow the stack during packet parsing and rendering. This can crash the application or allow arbitrary code execution. The flaw is rated CRITICAL with a CVSS v3.1 score of 9.8, and it can be triggered over the network without authentication or user interaction.
NVD 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.
EPSS · FIRST.org
0.88%probability of exploitation in the next 30 days
Higher than 58% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 12 sept. 2026
- Updated
- 23 sept. 2026
- Status
- Deferred
- Source
- disclosure@vulncheck.com
Weaknesses (CWE)
References (5)
Similar CVEs
Other vulnerabilities of type CWE-121
Monitor your products
Get automatic alerts for every new CVE affecting your equipment.