CVE-2026-49472
Medium
Description
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a vulnerable function, PREFIX(prologTok)(), in libs/xmlrpc-c/lib/expat/xmltok/xmltok_impl.c, which was cloned from an outdated and vulnerable version in libexpat/libexpat.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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductFreeswitch
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-116CWE-116
How to fix
Update
- freeswitch freeswitch1.11.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freeswitch freeswitch | v < 1.11.0 | 1.11.0 |
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