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CVE-2026-76487

Cisco Unified Communications Manager Improper Access Control Vulnerability

Medium5.3EPSS 0.61%
Published
Updated
Reserved
Assigned by
cisco

Description

A vulnerability in 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 access control bypass attacks on an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to access parts of the network that are beyond the scope of their intended access.

Scores

CVSS scores of CVE-2026-76487, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVDNVD · Awaiting Analysis3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS (exploitation in 30 days)
0.61% · top 50% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · 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 5.3.

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 vulnerability that is described in this advisory.

References (1)

Sources

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

Badge for a README or a ticket

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Record last updated .