CVE-2026-46334
— UNSCOREDpublic exploit availablePublished 2026-08-05 · Updated 2026-08-05
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions prior to 3.6.6 and 4.0.0-rc1 contain a denial of service vulnerability in the SDP bandwidth-line parsing logic. A SIP request with Content-Type: application/sdp and a malformed session-level SDP bandwidth line missing the required colon delimiter can corrupt parsed SDP bandwidth metadata. When a route or module subsequently clones the corrupted SDP state, as occurs with dialog and QoS processing, the OpenSIPS worker process crashes. An unauthenticated remote attacker can therefore trigger a crash in any configuration whose routing script parses attacker-controlled SDP and applies dialog/QoS processing. This issue has been fixed in versions 3.6.6 and 4.0.0-rc1.
Weaknesses
CWE-20, CWE-476
Public exploit & PoC references
- https://github.com/OpenSIPS/opensips/commit/8fe74b01f6fbf86c0b5e290735275530cb65e0fb
- https://github.com/OpenSIPS/opensips/commit/ac5309d5b8206cd3dbe1b4e01567c8db1ce31444
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-rh36-mhpv-cx2r
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-rh36-mhpv-cx2r
All references
- https://github.com/OpenSIPS/opensips/commit/8fe74b01f6fbf86c0b5e290735275530cb65e0fb
- https://github.com/OpenSIPS/opensips/commit/ac5309d5b8206cd3dbe1b4e01567c8db1ce31444
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-rh36-mhpv-cx2r
- https://github.com/OpenSIPS/opensips/security/advisories/GHSA-rh36-mhpv-cx2r
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.