Is there a public exploit for CVE-2026-116788?

No public exploit for CVE-2026-116788 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-116788?

CVE-2026-116788 scores CVSS 8.2 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.41%.

What does CVE-2026-116788 affect?

CVE-2026-116788 affects signalwire freeswitch.

8.2 High

FreeSWITCH is an open-source software telecommunications platform.

CVE-2026-116788

FreeSWITCH is an open-source software telecommunications platform. Before version 1.11.2, an integer underflow in switchxmldecode() can cause an undersized heap allocation when an XML document declares an entity with an empty replacement value. Subsequent copying overruns the allocated buffer. An unauthenticated attacker who can reach a SIP profile with presence management enabled and DTD processing permitted can trigger the vulnerability through a crafted SIP PUBLISH request. Exploitation can corrupt heap memory and terminate the FreeSWITCH process, interrupting all active calls. This vulnerability is fixed in version 1.11.2.

Assessment

CVSS: 8.2 (v3.1)
Severity: High
EPSS: 0.41% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 5 November 2026
Last updated: 9 November 2026
Affected: signalwire · freeswitch
Assigner: GitHub_M

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

At the source

EUVD (ENISA)

References

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