CVE Watch4 sept 2026

CVE-2026-57160

PJSIP is a free and open source multimedia communication library written in C. Prior to commit d6a0e7f, a buffer overflow can occur in pjsip

CVSS

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Sin CVSS

EPSS

0.4%

p37

KEV

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Exploit Today

0-100

Publicado: 4 sept 2026 · Última mod.: 4 sept 2026 · CWE-193

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-09-052026-09-06

Descripción técnica

PJSIP is a free and open source multimedia communication library written in C. Prior to commit d6a0e7f, a buffer overflow can occur in pjsip_generic_array_hdr_print() in pjsip/src/pjsip/sip_msg.c, the function that serializes generic array headers (such as Allow, Require, Supported, and Unsupported). Under certain output-buffer boundary conditions the function can write one byte past the end of the buffer. This is reachable mainly in applications that parse and re-serialize incoming SIP requests — for example a proxy, SBC, or B2BUA — where a remote peer can influence the serialized message. The out-of-bounds write is a single fixed byte; code execution and information disclosure are not demonstrated, and in typical pool-based allocations the byte falls within allocation slack. This issue has been patched via commit d6a0e7f.

Referencias oficiales

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