PT-2026-47845 · Signalwire · Freeswitch

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-49472

Mitre

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.0, FreeSWITCH includes a vulnerable function, PREFIX(prologTok)(), in libs/xmlrpc-c/lib/expat/xmltok/xmltok impl.c, which was cloned from an outdated and vulnerable version in libexpat/libexpat. The function did not receive the corresponding security patch. This issue has been patched in version 1.11.0.

Fix

Improper Encoding or Escaping of Output

Weakness Enumeration

CWE-116

Related Identifiers

CVE-2026-49472

Affected Products

Freeswitch

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-49472 · Security Note
• https://github.com/signalwire/freeswitch/releases/tag/v1.11.0 · Note
• https://github.com/signalwire/freeswitch/security/advisories/GHSA-4jm3-xpcm-mwwq · Note