Linux Distros Unpatched Vulnerability : CVE-2026-45538

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenSIPS is a Session Initiation Protocol SIP server implementation. In versions 4.0.0 and prior, processing a SIP message with a header name longer than 255...

Linux Distros Unpatched Vulnerability : CVE-2026-45705

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenSIPS is a Session Initiation Protocol SIP server implementation. In versions prior to 3.6.6 and 4.0.0-rc1, the findlinedelimiter function in the multipart...

Linux Distros Unpatched Vulnerability : CVE-2026-45103

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenSIPS is a Session Initiation Protocol SIP server implementation. In versions prior to 3.6.6 and 4.0.0-rc1, the TCP message framing layer parses the...

Linux Distros Unpatched Vulnerability : CVE-2026-45100

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenSIPS is a Session Initiation Protocol SIP server implementation. Versions 3.4.0-beta through 3.6.5 and 4.0.0-beta contain a buffer overflow in the s.b64enco...

Linux Distros Unpatched Vulnerability : CVE-2026-45537

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenSIPS is a Session Initiation Protocol SIP server implementation. In versions prior to 3.6.6 and 4.0.0-rc1, the constructuri function concatenates multiple U...

CVE-2026-46334

A flaw was found in OpenSIPS, a Session Initiation Protocol SIP server. An unauthenticated remote attacker could exploit a vulnerability in the Session Description Protocol SDP bandwidth-line parsing logic. By sending a SIP request with a malformed SDP bandwidth line, the attacker could corrupt...

CVE-2026-46334

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 t...

CVE-2026-45809

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 watcherinfo generation functionality. An attacker can create an oversized watcher entry by sending a SUBSCRIBE Event: presence request with a...

CVE-2026-45705

OpenSIPS is a Session Initiation Protocol SIP server implementation. In versions prior to 3.6.6 and 4.0.0-rc1, the findlinedelimiter function in the multipart body parser performs an out-of-bounds read via strncmp when searching for MIME boundary delimiters. After finding a -- pattern near the en...

CVE-2026-45705

A flaw was found in OpenSIPS, a Session Initiation Protocol SIP server. A remote attacker could exploit an out-of-bounds read vulnerability in the multipart body parser by sending a specially crafted SIP message. This could cause the server to read beyond its allocated memory, leading to a denial...

CVE-2026-45809

A flaw was found in OpenSIPS, a Session Initiation Protocol SIP server. A remote attacker can cause a Denial of Service DoS by sending a SUBSCRIBE Event: presence request with an excessively long 'From' Uniform Resource Identifier URI. This action creates an oversized watcher entry. When the syst...

EUVD-2026-53010

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 t...

CVE-2026-46334 OpenSIPS: Denial of Service in SDP bandwidth parsing via QoS SDP cloning

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 t...

CVE-2026-46334 OpenSIPS: Denial of Service in SDP bandwidth parsing via QoS SDP cloning

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 t...

CVE-2026-46334

Technical details for CVE-2026-46334 are not provided in the supplied documents; only high-level info and fixes are available. Monitor for updates in the connected sources.

CVE-2026-46334 OpenSIPS: Denial of Service in SDP bandwidth parsing via QoS SDP cloning

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 t...

CVE-2026-45809

OpenSIPS denial-of-service in watcherinfo XML generation (CVE-2026-45809). Affected: OpenSIPS before 3.6.6 and 4.0.0-rc1. Root cause: copying the stored watcher URI into a fixed-size stack buffer during presence.winfo watcherinfo XML generation when an oversized watcher entry is created by a long...

CVE-2026-45809 OpenSIPS: Denial of Service in watcherinfo XML generation from oversized watcher URI

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 watcherinfo generation functionality. An attacker can create an oversized watcher entry by sending a SUBSCRIBE Event: presence request with a...

CVE-2026-45809 OpenSIPS: Denial of Service in watcherinfo XML generation from oversized watcher URI

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 watcherinfo generation functionality. An attacker can create an oversized watcher entry by sending a SUBSCRIBE Event: presence request with a...

EUVD-2026-53002

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 watcherinfo generation functionality. An attacker can create an oversized watcher entry by sending a SUBSCRIBE Event: presence request with a...