CVE-2021-34773

MEDIUM

Cisco Unified Communications Manager - Cross-Site Request Forgery

Title source: llm
STIX 2.1

Description

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected device. This vulnerability is due to insufficient CSRF protections for the web-based management interface on an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious link. A successful exploit could allow the attacker to perform arbitrary actions with the privilege level of the targeted user. These actions could include modifying the device configuration and deleting (but not creating) user accounts.

References (1)

Core 1
Core References

Scores

CVSS v3 6.5
EPSS 0.0024
EPSS Percentile 47.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-352
Status published
Products (6)
cisco/unified_communications_manager
cisco/unified_communications_manager 14.0\(1.10000.20\)
cisco/unified_communications_manager_im_and_presence_service 10.5\(2\)
cisco/unified_communications_manager_im_and_presence_service 11.5\(1\)
cisco/unified_communications_manager_im_and_presence_service 12.5
cisco/unified_communications_manager_im_and_presence_service 14.0
Published Nov 04, 2021
Tracked Since Feb 18, 2026