Is there a public exploit for CVE-2026-76478?

No public exploit for CVE-2026-76478 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-2026-76478?

CVE-2026-76478 scores CVSS 8.8 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.15%.

What does CVE-2026-76478 affect?

CVE-2026-76478 affects Cisco Cisco Unified Communications Manager IM and Presence Service, Cisco Unity Connection, Cisco Unified Communications Manager, Cisco Emergency Responder.

8.8 High

As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco…

CVE-2026-76478

As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection have conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76478 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

Assessment

CVSS: 8.8 (v3.1)
Severity: High
EPSS: 0.15% 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: 21 October 2026
Last updated: 7 November 2026
Affected: Cisco · Cisco Emergency Responder · Cisco Unified Communications Manager · Cisco Unified Communications Manager IM and Presence Service · Cisco Unity Connection
Assigner: cisco

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

At the source

EUVD (ENISA)

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-voice-hardening-twgbH9e3

Community proofs of concept

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Query this programmatically

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curl https://cve.zerocrew.in/api/cve/CVE-2026-76478