Vulnerability record · CVE-2026-90779 · published 13 September 2026

CVE-2026-90779: Stack-based buffer overflow vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.80% · top 45.1% CWE-121 · Stack-based buffer overflow Deferred

8.7CVSS 4.0 base score

0.80%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

5References

23 Sep 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
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

Track CVE-2026-90779 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2026-7273Zyxel gs1900-8 firmware stack-based buffer overflow vulnerabilityA stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-base…KEVEPSS 2.5%16 Jun 2026 8.1CVE-2021-27137DD-WRT UPnP M-SEARCH stack buffer overflowDD-WRT before 45724 contains an unsafe strcpy in the UPnP SSDP handling code (ssdp_msearch), reachable via an M-SEARCH request, that overflows a fixe…KEVEPSS 4.0%analysed16 Jul 2026 9.3CVE-2025-53521F5 BIG-IP APM stack buffer overflow allows remote code executionA stack-based buffer overflow (CWE-121) exists in F5 BIG-IP Access Policy Manager when an APM access policy is configured on a virtual server. Specif…KEVEPSS 2.3%analysed15 Oct 2025 8.8CVE-2008-0015Microsoft DirectShow Video ActiveX Control Stack Buffer OverflowA stack-based buffer overflow in the CComVariant::ReadFromStream function in the Active Template Library (ATL) is reachable through the MPEG2TuneRequ…KEVEPSS 77%analysed7 Jul 2009 7.7CVE-2025-20352Cisco IOS and IOS XE SNMP stack overflow allows DoS and root code executionA stack-based buffer overflow in the SNMP subsystem of Cisco IOS and IOS XE Software can be triggered by a crafted SNMP packet sent over IPv4 or IPv6…KEVEPSS 39%analysed24 Sep 2025 9.8CVE-2025-32756Fortinet FortiMail, FortiNDR, FortiVoice, FortiRecorder, FortiCamera stack buffer overflowA stack-based buffer overflow (CWE-121/CWE-787) in multiple Fortinet products is reachable by sending HTTP requests with a specially crafted hash coo…KEVEPSS 30%analysed13 May 2025 9.8CVE-2025-42599Qualitia Active! mail stack buffer overflow allows remote code executionActive! mail 6 (BuildInfo 6.60.05008561 and earlier) contains a stack-based buffer overflow (CWE-121). A remote unauthenticated attacker can trigger …KEVEPSS 3.3%analysed18 Apr 2025 9.8CVE-2025-22457Ivanti Connect Secure, Policy Secure and ZTA Gateways stack buffer overflow RCEA stack-based buffer overflow (CWE-121/CWE-787) in Ivanti Connect Secure, Policy Secure and ZTA Gateways allows a remote, unauthenticated attacker to…KEVEPSS 100%analysed3 Apr 2025

Source: NIST National Vulnerability Database (record CVE-2026-90779), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.