CVE-2021-1399

4.3 mediumEPSS 0.6%

Medium (4.3) in cisco unified communications manager. EPSS 0.6% chance of exploitation in the next 30 days.

A vulnerability in the Self Care Portal of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to modify data on an affected system without proper authorization. The vulnerability is due to insufficient validation of user-supplied data to the Self Care Portal. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to modify information without proper authorization.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)
CWE: CWE-302
Published: 2021-04-08
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

cisco:unified_communications_manager

References

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