Critical-Severity Improper Authentication Flaw in Cisco Emergency Responder Tracked as CVE-2026-76474
A newly published critical vulnerability in Cisco Emergency Responder carries a CVSS score of 9.8. Here is what is affected and how to respond.
Key points
- CVE-2026-76474 affects Cisco Emergency Responder.
- CVSS 9.8 (Critical).
- No exploitation confirmed yet.
A critical improper authentication tracked as CVE-2026-76474 has been published in the National Vulnerability Database for Cisco Emergency Responder, with a CVSS base score of 9.8.
At a glance
- CVE
- CVE-2026-76474
- Product
- Cisco Emergency Responder
- CVSS
- 9.8 Critical
- Weakness
- improper authentication
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: 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-2026-76474 are related to issues concerning improper authentication that are grouped under the Common Weakness Enumeration (CWE) Class CWE-287.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Emergency Responder | 14, 14SU1, 14SU2, 14SU3 |
| Cisco | Cisco Unified Communications Manager | 14, 14SU1, 14SU2, 14SU3 |
| Cisco | Cisco Unified Communications Manager IM and Presence Service | 14, 14SU1, 14SU2, 14SU2a |
| Cisco | Cisco Unity Connection | 14, 14SU1, 14SU2, 14SU3 |
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-76474
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-76474?
CVE-2026-76474 is a improper authentication vulnerability in Cisco Emergency Responder.
How severe is CVE-2026-76474?
It has a CVSS score of 9.8 Critical.
Is CVE-2026-76474 being exploited?
There is no public confirmation of exploitation at the time of publication.
