Quick answers
- Is CVE-2026-116572 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-116572 being exploited in the wild.
- How severe is CVE-2026-116572?
- Medium severity, with a CVSS score of 6.5, published 5 November 2026.
- Which products and versions are affected?
- SignalWire FreeSWITCH 1.10.0 to 1.11.1.
- Is there a fix for CVE-2026-116572?
- Yes: fixed in 1.11.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-116572 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-116572?
- Check whether you run SignalWire FreeSWITCH at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 1.11.2
Technical details
A stack-based buffer overflow exists in mod_sofia's get_display_name_from_contact() function, which copies SIP Contact display-name fields into a fixed 512-byte buffer using unbounded strcpy(). An attacker must establish a dialog with an excessively long display name and trigger a dialog-event subscription (dialog-package SUBSCRIBE), causing the stored value to overflow the stack. Exploitation requires presence management enabled and typically valid profile credentials, unless subscription authentication is disabled. The vulnerability was fixed by replacing strcpy() with bounds-checking switch_copy_string().
Affected products
- SignalWire FreeSWITCH 1.10.0 to 1.11.1
Timeline
- 2026-11-05: disclosed