CVE-2026-116573 (GCVE-0-2026-116573)

Vulnerability from cvelistv5 – Published: 2026-11-05 18:59 – Updated: 2026-11-05 21:07
VLAI
Title
FreeSWITCH mod_sofia: stack buffer overflow from an over-long SIP To-header user
Summary
FreeSWITCH is an open-source software telecommunications platform. From 1.10.0 until 1.11.1, a stack-based buffer overflow in  mod_sofia  when generating dialog-event notifications. A peer can establish a dialog with an excessively long SIP To-header user part and subsequently subscribe to that entity’s dialog events, causing the stored value to overflow a fixed-size stack buffer. Exploitation requires presence or shared-appearance management to be enabled and normally requires valid profile credentials, unless subscription authentication is disabled. The overflow can terminate the FreeSWITCH process and all active calls. This vulnerability is fixed in version 1.11.2.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 21:07 UTC
CWE
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 8094 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
signalwire freeswitch Affected: < 1.11.2
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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