Vulnerability DatabaseCVE-2026-49472
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CVE-2026-49472
Published:June 09, 2026
Updated:August 04, 2026
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a vulnerable function, PREFIX(prologTok)(), in libs/xmlrpc-c/lib/expat/xmltok/xmltok_impl.c, which was cloned from an outdated and vulnerable version in libexpat/libexpat.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.
Affected Packages
https://github.com/signalwire/freeswitch.git (GITHUB):
Affected version(s) >=v1.0.0 <v1.11.0
Fix Suggestion:
Update to version v1.11.0
Related Resources (4)
https://nvd.nist.gov/vuln/detail/CVE-2026-49472
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49472.json
https://github.com/signalwire/freeswitch/security/advisories/GHSA-4jm3-xpcm-mwwq
https://github.com/signalwire/freeswitch/releases/tag/v1.11.0
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CVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Encoding or Escaping of Output
CWE-116
EPSS
Base Score:
0.22