CVE-2026-90778 Details
Description
SIPp through 3.7.7 contains a buffer overflow vulnerability in get_peer_tag() function when processing SIP To headers with tag parameters of 2049 bytes or more. Unauthenticated remote attackers can send crafted SIP messages with oversized tag parameters to overflow the static buffer and crash the process.
A buffer overflow vulnerability has been identified in SIPp versions through 3.7.7. The issue arises in the 'get_peer_tag()' function, which processes SIP To headers containing tag parameters of 2049 bytes or more. Unauthenticated remote attackers can exploit this vulnerability by sending crafted SIP messages with oversized tag parameters, leading to a buffer overflow of a static 2049-byte buffer. This overflow allows for the injection of attacker-controlled data, causing the application to crash.
Users can upgrade to SIPp version 3.7.8 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 13, 2026CISA-ADP
Assessed Sep 14, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/SIPp/sipp | [email protected] | ProductVendor |
| https://github.com/SIPp/sipp/blob/v3.7.7/src/sip_parser.cpp#L76-L113 | [email protected] | Source CodeVendor |
| https://github.com/SIPp/sipp/commit/ddf22d1a54e0396b2e18ebaf4cf5a3fa860e5da4 | [email protected] | Source CodeVendor |
| https://github.com/SIPp/sipp/pull/879 | [email protected] | Issue TrackingVendor |
| https://www.vulncheck.com/advisories/sipp-through-3.7.7-buffer-overflow-via-sip-to-header-tag | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| SIPp | <= 3.7.7 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 14, 2026 | CVE Modified | CISA-ADP |
| Sep 13, 2026 | New CVE Received | [email protected] |