Vulnerability · Published May 6, 2021 · Assigned by cisco

CVE-2021-1478Cisco Unified Communications Manager Denial of Service Vulnerability

Medium 5.3

In plain English

A medium-severity improper access control in Cisco Unified Communications Manager from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)1.0%top 36.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the Java Management Extensions (JMX) component 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 cause a denial of service (DoS) condition on an affected system. This vulnerability is due to an unsecured TCP/IP port. An attacker could exploit this vulnerability by accessing the port and restarting the JMX process. A successful exploit could allow the attacker to cause a DoS condition on an affected system.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Unified Communications Manager	n/a

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

20210505 Cisco Unified Communications Manager Denial of Service Vulnerability vendor-advisory, x_refsource_CISCO