Description
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.
Published: 2026-09-13
Score: 8.7 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sun, 13 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description 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.
Title SIPp through 3.7.7 Stack Buffer Overflow via createAuthHeader Algorithm Parameter
Weaknesses CWE-121
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-13T11:42:28.431Z

Reserved: 2026-09-13T11:15:54.633Z

Link: CVE-2026-90779

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-13T12:17:16.960

Modified: 2026-09-13T12:17:16.960

Link: CVE-2026-90779

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses