What is CVE-2026-45771?

CVE-2026-45771 is a high-severity vulnerability in Freeswitch, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 7.5/10. Published 2026-06-09.

How severe is CVE-2026-45771?

High severity. CVSS v3 base score is 7.5 out of 10.

XXE in Freeswitch

CVE-2026-45771

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's bundled XML parser…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Freeswitch

Weakness classification (CWE)

CWE-776 — Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion)

References

security-advisories@github.com (Product, Release Notes)
security-advisories@github.com (Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-45771?: CVE-2026-45771 is a high-severity vulnerability in Freeswitch, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 7.5/10. Published 2026-06-09.
How severe is CVE-2026-45771?: High severity. CVSS v3 base score is 7.5 out of 10.