CVE-2026-90779

SIPp through 3.7.7 contains a stack buffer overflow vulnerability in createAuthHeader() when processing SIP authentication challenges with oversized algorithm parameters. A malicious SIP server can send a crafted 401 or 407 challenge to corrupt the stack and crash the client process.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/SIPp/sipp
https://github.com/SIPp/sipp/blob/v3.7.7/src/auth.cpp#L183-L192
https://github.com/SIPp/sipp/commit/1d4a5622bea34d0b5cdff333e6b5734608e30af7
https://github.com/SIPp/sipp/pull/880
https://www.vulncheck.com/advisories/sipp-through-3.7.7-stack-buffer-overflow-via-createauthheader-algorithm-parameter

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-13 12:17

Updated : 2026-09-14 16:17

NVD link : CVE-2026-90779

Mitre link : CVE-2026-90779

CVE.ORG link : CVE-2026-90779

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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