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CVE-2026-76419

Cisco Unified Communications Manager Cross-Site Scripting Vulnerability

Medium6.1EPSS 0.28%
Published
Updated
Reserved
Assigned by
cisco

Description

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Timeline

  1. ID reserved

    By cisco

  2. · 3 months later

    Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-76419, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1Medium6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVDNVD · Awaiting Analysis3.1Medium6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.28% · top 80% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.

Weakness

Affected products

  • Cisco · Cisco Unified Communications Manager

    • affected 14
    • affected 14SU1
    • affected 14SU2
    • affected 14SU3
    • affected 15
    • affected 15SU1
    • affected 14SU4
    • affected 14SU4a
    • affected 15SU1a
    • affected 15SU2
    • affected 15.0.1.13010-1
    • affected 15.0.1.13011-1
    • affected 15.0.1.13012-1
    • affected 15.0.1.13013-1
    • affected 15.0.1.13014-1
    • affected 15.0.1.13015-1
    • affected 15.0.1.13016-1
    • affected 15.0.1.13017-1
    • affected 15SU3a
    • affected 14SU5
    • affected 15SU4
    • affected 15SU4a
    • affected 14SU6

What to do

Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .