CVE-2021-32686

CVE-2021-32686 affects the PJSIP pjproject library prior to 2.11.1. The issue is a race condition in the SSL socket: (1) the accepted socket lacks a group lock, causing a race between callback and destroy, and (2) the SSL socket parent/listener may be destroyed during TLS handshake. These intermi...

CVE-2023-27585

Summary: CVE-2023-27585 affects the PJSIP DNS resolver in the pjproject library. The vulnerability is a buffer overflow in the parsing of DNS query records (parse_query()) for versions 2.13 and earlier. Impact: as described, it can cause a crash (availability impact) with no confidentiality/integ...

CVE-2022-23537

CVE-2022-23537 affects the pjproject family (PJSIP/PJNATH) used for STUN processing. The issue is a buffer overread that occurs when parsing a specially crafted STUN message containing an unknown attribute, as described in the CVE entry. The vulnerability applies to applications using STUN featur...

CVE-2017-16872

CVE-2017-16872 affects Teluu pjproject (pjlib and pjlib-util) in PJSIP before 2.7.1. The issue arises when parsing numeric SIP header fields (e.g., CSeq, ttl, port); values can overflow and may be captured incorrectly or cause a buffer overrun if converted back to strings, enabling a potential ex...

CVE-2017-16875

CVE-2017-16875 affects Teluu pjproject (PJLIB/PJLIB-UTIL) in PJSIP prior to 2.7.1. The ioqueue component may perform a double key unregistration after a crafted socket sequence, triggering an integer overflow that can cause ioqueue backends to reject future key registrations. Affected software is...

CVE-2026-42225

PJSIP’s GnuTLS-enabled SIP TLS transport (sip_transport_tls) in builds prior to version 2.17 can accept connections with invalid/untrusted certificates even when verify_server/verify_client are PJ_TRUE. The vulnerability arises from certificate verification being effectively skipped for those bui...

CVE-2026-41416

PJSIP (C library) has an integer overflow in the media stream buffer size calculation when processing SDP with asymmetric ptime configuration in versions 2.16 and earlier. This may lead to an undersized buffer and memory corruption or unexpected termination. The issue is fixed in version 2.17; up...

CVE-2026-41415

PJSIP (the C library) contains CVE-2026-41415: in 2.16 and earlier, parsing a malformed Content-ID URI in a SIP multipart message body can trigger an out-of-bounds read due to insufficient length validation. Red Hat describes a potential denial-of-service impact and notes mitigation may not meet ...

CVE-2026-34235

CVE-2026-34235 affects the PJSIP library (C) prior to version 2.17, where the VP9 RTP unpacketizer has a heap out-of-bounds read when parsing crafted VP9 SS data. The vulnerability stems from insufficient bounds checking on the payload descriptor length, causing reads beyond the RTP payload buffe...