As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency
Source GCVE Database
Not known to be exploited · CVSS 8.8 High.
Data as of 7 Nov 2026, 19:47 UTC
Thin evidence
One scorer or none| CNA (cisco) | CVSS 3.1 | 8.8 |
|---|
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| CiscoCisco Emergency Responder | Affected
| Fixed in– |
| CiscoCisco Unified Communications Manager | Affected
| Fixed in– |
| CiscoCisco Unified Communications Manager IM and Presence Service | Affected
| Fixed in– |
| CiscoCisco Unity Connection | Affected
| Fixed in– |
AI-suggested
Cisco has released software hardening updates to address these vulnerabilities. Users of the affected Cisco products should apply the provided updates promptly to mitigate the risk. Since this is not a cloud service, remediation depends on deploying the updated software versions. Patch status is not explicitly confirmed in the provided data; users should consult Cisco advisories for the latest remediation guidance.
Description
CVE-2026-76478 is a high-severity vulnerability involving improper access control (CWE-284) discovered internally by Cisco in multiple collaboration and communication products. The issue affects Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager and related services. Cisco has conducted a security review and released software hardening updates to address these vulnerabilities.