CVE-2021-1226: Cisco Unified Communications Products Information Disclosure Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-01-13 · updated 2026-06-17
Weakness: CWE-532

Description

A vulnerability in the audit logging component of Cisco Unified Communications Manager, Cisco Unified Communications Manager Session Management Edition, Cisco Unified Communications Manager IM & Presence Service, Cisco Unity Connection, Cisco Emergency Responder, and Cisco Prime License Manager could allow an authenticated, remote attacker to view sensitive information in clear text on an affected system. The vulnerability is due to the storage of certain unencrypted credentials. An attacker could exploit this vulnerability by accessing the audit logs on an affected system and obtaining credentials that they may not normally have access to. A successful exploit could allow the attacker to use those credentials to discover and manage network devices.

Affected products

Cisco Emergency Responder: from 12.5\(1\) before 12.5\(1\)su3; 10.5(2), 11.5(1), 12.0(1) — fixed in 12.5\(1\)su3
Cisco Prime License Manager: from 11.5\(1\) before 11.5\(1\)su9; 10.5(2) — fixed in 11.5\(1\)su9
Cisco Unified Communications Manager: from 11.5\(1\) before 11.5\(1\)su9; 10.5(2) — fixed in 11.5\(1\)su9
Cisco Unified Communications Manager Im & Presence Service: from 11.5\(1\) before 11.5\(1\)su9; from 12.5\(1\) before 12.5\(1\)su3; 10.5(2), 12.0(1) — fixed in 11.5\(1\)su9, 12.5\(1\)su3
Cisco Unity Connection: from 11.5\(1\) before 11.5\(1\)su9; from 12.0\(1\) before 12.0\(1\)su4; from 12.5\(1\) before 12.5\(1\)su3; 10.5(2) — fixed in 11.5\(1\)su9, 12.0\(1\)su4, 12.5\(1\)su3

How to fix

Upgrade to a fixed version: Cisco Emergency Responder 12.5\(1\)su3; Cisco Prime License Manager 11.5\(1\)su9; Cisco Unified Communications Manager 11.5\(1\)su9; Cisco Unified Communications Manager Im & Presence Service 11.5\(1\)su9, 12.5\(1\)su3; Cisco Unity Connection 11.5\(1\)su9, 12.0\(1\)su4, 12.5\(1\)su3. Check the vendor advisory for mitigations.

References

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