CVE-2026-57160
published 2026-09-04CVE-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…
PriorityP432medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
0.41%
34.3th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| pjsip | pjproject | < d6a0e7f76611c3a6f530ee051e3e7a622bb1748c | d6a0e7f76611c3a6f530ee051e3e7a622bb1748c |
| teluu | pjsip | <= 2.17 | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
nvdv4.06.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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No advisories linked to this vulnerability.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-57160 pjproject: SIP message header buffer overflow [epel-all]
bugzilla·2026-09-09·CVSS 6.9
CVE-2026-57160 [MEDIUM] CVE-2026-57160 pjproject: SIP message header buffer overflow [epel-all]
CVE-2026-57160 pjproject: SIP message header buffer overflow [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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 —
Bugzilla
CVE-2026-57160 asterisk: SIP message header buffer overflow [fedora-all]
bugzilla·2026-09-09·CVSS 6.9
CVE-2026-57160 [MEDIUM] CVE-2026-57160 asterisk: SIP message header buffer overflow [fedora-all]
CVE-2026-57160 asterisk: SIP message header buffer overflow [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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
Bugzilla
CVE-2026-57160 pjproject: SIP message header buffer overflow [fedora-all]
bugzilla·2026-09-09·CVSS 6.9
CVE-2026-57160 [MEDIUM] CVE-2026-57160 pjproject: SIP message header buffer overflow [fedora-all]
CVE-2026-57160 pjproject: SIP message header buffer overflow [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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
Bugzilla
CVE-2026-57160 asterisk: SIP message header buffer overflow [epel-all]
bugzilla·2026-09-09·CVSS 6.9
CVE-2026-57160 [MEDIUM] CVE-2026-57160 asterisk: SIP message header buffer overflow [epel-all]
CVE-2026-57160 asterisk: SIP message header buffer overflow [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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 —
Bugzilla
CVE-2026-57160 pjproject: PJSIP: Buffer overflow via SIP message header serialization
bugzilla·2026-09-04·CVSS 6.9
CVE-2026-57160 [MEDIUM] CVE-2026-57160 pjproject: PJSIP: Buffer overflow via SIP message header serialization
CVE-2026-57160 pjproject: PJSIP: Buffer overflow via SIP message header serialization
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
2026-09-04
Published