UBUNTU-CVE-2026-45103

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 Content-Length header using unsigned int arithmetic with no overflow check. When an attacker sends a Content-Length value that overflows unsigned...

UBUNTU-CVE-2026-45100

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.b64encode string transformation. The size check for s.b64encode only verifies that the input fits within the 64 KB transformation buffer, but...

CVE-2026-45084

OpenSIPS is a Session Initiation Protocol SIP server implementation. Versions 3.4.0 through 3.6.5 contain a denial of service vulnerability in the presence module. When the presence module's handlepublish function processes a SIP PUBLISH request with an Event: presence header and a message body...

EUVD-2026-52979

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 Content-Length header using unsigned int arithmetic with no overflow check. When an attacker sends a Content-Length value that overflows unsigned...

CVE-2026-45103

OpenSIPS vulnerable to SIP message smuggling via TCP Content-Length overflow. In versions < 3.6.6 and

CVE-2026-45103 OpenSIPS: SIP Message Smuggling via TCP Content-Length Integer Overflow

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 Content-Length header using unsigned int arithmetic with no overflow check. When an attacker sends a Content-Length value that overflows unsigned...

CVE-2026-45103 OpenSIPS: SIP Message Smuggling via TCP Content-Length Integer Overflow

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 Content-Length header using unsigned int arithmetic with no overflow check. When an attacker sends a Content-Length value that overflows unsigned...

CVE-2026-45100

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.b64encode string transformation. The size check for s.b64encode only verifies that the input fits within the 64 KB transformation buffer, but...

CVE-2026-45100 OpenSIPS: Buffer Overflow in Base64 Encode Transformation

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.b64encode string transformation. The size check for s.b64encode only verifies that the input fits within the 64 KB transformation buffer, but...

UBUNTU-CVE-2026-45538

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 bytes causes a stack buffer overflow when siptojson is called in the routing script. Function siptojson modules/sipmsgops/sipmsgops.c copie...

CVE-2026-45538 OpenSIPS: Stack Buffer Overflow in sip_to_json() Header Name Copy

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 bytes causes a stack buffer overflow when siptojson is called in the routing script. Function siptojson modules/sipmsgops/sipmsgops.c copie...

CVE-2026-24078

Information Disclosure when IPSec negotiation fails or is not established properly during NG-eCall SIP signaling...

Security Bulletin: A security vulnerability has been identified in WebSphere Application Server shipped with IBM Guardium Key Lifecycle Manager (SKLM/GKLM) (CVE-2026-14529)

Summary WebSphere Application Server is shipped as a component of IBM Guardium Key Lifecycle Manager SKLM/GKLM. Information about a security vulnerability affecting WebSphere Application Server has been published in a security bulletin. Vulnerability Details CVEID:CVE-2026-14529 DESCRIPTION: IBM...

PT-2026-67851

Name of the Vulnerable Software and Affected Versions OpenSIPS versions prior to 4.0.1 Description A stack buffer overflow occurs when processing a SIP message containing a header name longer than 255 bytes. This happens when the routing script calls the sip to json function, which copies header...

CVE-2026-24078: Exposure of Private Personal Information to an Unauthorized Actor

Information Disclosure when IPSec negotiation fails or is not established properly during NG-eCall SIP signaling...

PT-2026-67897

Name of the Vulnerable Software and Affected Versions OpenSIPS versions prior to 3.6.6 OpenSIPS versions prior to 4.0.0-rc1 Description A denial of service issue exists in the SDP bandwidth-line parsing logic. An unauthenticated remote attacker can send a SIP request with Content-Type:...

CVE-2026-45100: Buffer Copy without Checking Size of Input

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.b64encode string transformation. The size check for s.b64encode only verifies that the input fits within the 64 KB transformation buffer, but...

CVE-2026-45084: NULL Pointer Dereference

OpenSIPS is a Session Initiation Protocol SIP server implementation. Versions 3.4.0 through 3.6.5 contain a denial of service vulnerability in the presence module. When the presence module's handlepublish function processes a SIP PUBLISH request with an Event: presence header and a message body...

PT-2026-67879

Name of the Vulnerable Software and Affected Versions OpenSIPS versions 3.4.0-beta through 3.6.5 OpenSIPS version 4.0.0-beta Description A buffer overflow exists in the s.b64encode string transformation. The size check only verifies that the input fits within the 64 KB transformation buffer,...

PT-2026-67880

Name of the Vulnerable Software and Affected Versions OpenSIPS versions prior to 3.6.6 OpenSIPS versions prior to 4.0.0-rc1 Description The TCP message framing layer parses the Content-Length header using unsigned int arithmetic without overflow checks. An unauthenticated, network-based attacker...