CVE-2024-20253

Description

A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to the improper processing of user-provided data that is being read into memory. An attacker could exploit this vulnerability by sending a crafted message to a listening port of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with the privileges of the web services user. With access to the underlying operating system, the attacker could also establish root access on the affected device.

Category

9.9
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 1.17% Top 25%
Vendor Advisory cisco.com
Affected: Cisco Cisco Unified Contact Center Enterprise
Affected: Cisco Cisco Unity Connection
Affected: Cisco Cisco Unified Communications Manager
Affected: Cisco Cisco Unified Contact Center Express
Affected: Cisco Cisco Unified Communications Manager IM and Presence Service
Affected: Cisco Cisco Virtualized Voice Browser
Affected: Cisco Cisco Packaged Contact Center Enterprise
Affected: Cisco Cisco Unified Communications Manager / Cisco Unity Connection
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2024-20253?
CVE-2024-20253 has been scored as a critical severity vulnerability.
How to fix CVE-2024-20253?
To fix CVE-2024-20253, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-20253 being actively exploited in the wild?
It is possible that CVE-2024-20253 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-20253?
CVE-2024-20253 affects Cisco Cisco Unified Contact Center Enterprise, Cisco Cisco Unity Connection, Cisco Cisco Unified Communications Manager, Cisco Cisco Unified Contact Center Express, Cisco Cisco Unified Communications Manager IM and Presence Service, Cisco Cisco Virtualized Voice Browser, Cisco Cisco Packaged Contact Center Enterprise, Cisco Cisco Unified Communications Manager / Cisco Unity Connection.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.