Quick answers
- Is CVE-2026-116787 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-116787 being exploited in the wild.
- How severe is CVE-2026-116787?
- High severity, with a CVSS score of 7.5, published 5 November 2026.
- Which products and versions are affected?
- SignalWire FreeSWITCH before 1.11.2.
- Is there a fix for CVE-2026-116787?
- 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-2026-116787 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-116787?
- 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
The mod_event_socket module parsed an unauthenticated Content-Length header value and used it directly in a memory allocation without validation, allowing negative or extremely large values to trigger memory allocation failures or integer overflows. Authentication occurs after header parsing, so any host permitted by the inbound ACL can trigger a crash with the first packet. The vulnerability affects both inbound Event Socket connections and outbound connections when FreeSWITCH connects to a hostile application server.
Affected products
- SignalWire FreeSWITCH before 1.11.2
Timeline
- 2026-11-05: disclosed
- 2026-08-09: patched