CVE-2026-45537

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 URI components protocol, username, domain, port, params into a fixed 1024-byte global BSS buffer without any bounds checking. When a routi...

CVE-2026-45537 OpenSIPS: Global Buffer Overflow in construct_uri

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 URI components protocol, username, domain, port, params into a fixed 1024-byte global BSS buffer without any bounds checking. When a routi...

CVE-2026-45537

OpenSIPS contains a buffer overflow in construct_uri() used to assemble SIP URIs. In versions before 3.6.6 and 4.0.0-rc1, components (protocol, username, domain, port, params) are concatenated into a fixed 1024-byte global BSS buffer without bounds checks. If a routing script supplies a long, att...