---
cve: "CVE-2026-57159"
severity: "LOW"
cvss: 3.1
epss: "6.5%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-09-04 18:17:53"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T00:30:46+02:00"
---

# CVE-2026-57159

> 3.1 LOW

## Beschreibung

PJSIP is a free and open source multimedia communication library written in C. Prior to commit 673b978, a remote out-of-bounds read and write can occur in the SDP negotiator when the remote payload-type map maintenance feature is enabled. assign_pt_and_update_map() in pjmedia/src/pjmedia/sdp_neg.c uses payload-type numbers taken from a remote SDP offer or answer to index fixed-size internal tables without sufficient bounds validation, so a crafted remote SDP can cause memory access outside those tables. The practical impact is memory corruption and denial of service; code execution is not demonstrated. This path is only reached when PJMEDIA_SDP_NEG_MAINTAIN_REMOTE_PT_MAP is enabled. The default is disabled, so default builds are not affected; the feature is an interoperability option that integrating products may enable. This issue has been patched via commit 673b978.

## Patch verfügbar (OSV)

- 673b978aab1fe3ab874247be32c871acc880cbeb (Commit)

## Referenzen

- <https://github.com/pjsip/pjproject/commit/673b978aab1fe3ab874247be32c871acc880cbeb>
- <https://github.com/pjsip/pjproject/security/advisories/GHSA-rfwg-w9gq-9mw2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-57159) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_