Mr.SIP

SIP Security, Attack and Audit Framework Mr.SIP is...

CVE-2026-116779

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.3, sofiapresencehandlesipimessage split the To user of an inbound SIP MESSAGE on a plus sign and...

CVE-2026-116779 FreeSWITCH: Inbound SIP MESSAGE can select the api chat proto and run FreeSWITCH API commands

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.3, sofiapresencehandlesipimessage split the To user of an inbound SIP MESSAGE on a plus sign and...

CVE-2026-116779

Prior to version 1.11.3 , FreeSWITCH is vulnerable to an unauthenticated OS command injection via the sofia_presence_handle_sip_i_message() function. The flaw exists because the software splits the To user of an inbound SIP MESSAGE on a plus sign (+) to select a chat protocol without proper allow...

CVE-2026-116779

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.3, sofiapresencehandlesipimessage split the To user of an inbound SIP MESSAGE on a plus sign and...

CVE-2026-116779 FreeSWITCH: Inbound SIP MESSAGE can select the api chat proto and run FreeSWITCH API commands

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to 1.11.3, sofiapresencehandlesipimessage split the To user of an inbound SIP MESSAGE on a plus sign and...

CVE-2023-28097

OpenSIPS is a Session Initiation Protocol SIP server implementation. Prior to versions 3.1.9 and 3.2.6, a malformed SIP message containing a large Content-Length value and a specially crafted Request-URI causes a segmentation fault in OpenSIPS. This issue occurs when a large amount of shared memo...

CVE-2023-27597

OpenSIPS is a Session Initiation Protocol SIP server implementation. Prior to versions 3.1.8 and 3.2.5, when a specially crafted SIP message is processed by the function rewriteruri, a crash occurs due to a segmentation fault. This issue causes the server to crash. It affects configurations...

PT-2026-132064

Name of the Vulnerable Software and Affected Versions FreeSWITCH versions prior to 1.11.3 Description An issue exists where an accepted SIP MESSAGE a text note sent through the phone system can be used to execute FreeSWITCH API commands, including operating system commands. This occurs because...

CVE-2026-110658

A flaw was found in Sofia-SIP. An unauthenticated remote attacker can cause a Denial of Service DoS by sending a specially crafted Session Initiation Protocol SIP message containing an oversized multipart boundary that exceeds the message body length. During message parsing, this flaw causes the...

CVE-2026-57160 PJSIP: SIP message header buffer overflow

PJSIP is a free and open source multimedia communication library written in C. Prior to commit d6a0e7f, a buffer overflow can occur in pjsipgenericarrayhdrprint in pjsip/src/pjsip/sipmsg.c, the function that serializes generic array headers such as Allow, Require, Supported, and Unsupported. Unde...

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-2026-45103

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-2026-45103

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...

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 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-2026-45103: Integer Overflow or Wraparound

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-2026-45538: Stack-based Buffer Overflow

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...