10

CVE-2024-20253: cisco cisco packaged contact center enterprise Deserialization of Untrusted Data

CVSS: 10.0v3.1CriticalModified
Published 26-01-2024Last modified 29-05-2025

Vulnerability summary

CVE-2024-20253 is a critical (CVSS 10.0) Deserialization of Untrusted Data vulnerability in cisco cisco packaged contact center enterprise. EPSS estimates a 2.40% chance of exploitation in the next 30 days, higher than 83.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v3.1 (NVD)
EPSS score
2.40%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-01-2024
    PublishedVulnerability first disclosed.
  2. 29-05-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

2.40%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.40% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.40%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco13 products
  • cisco packaged contact center enterprise10.5(1) | 10.5(2) | 10.5(1)_ES7 | 10.5(2)_ES8 | 11.0(1) | 11.0(2) | 11.5(1) | 11.6(1) | 11.6(2) | 12.0(1) | 12.5(1) | 12.5(2) | 12.6(1) | 12.6(2)
  • cisco unified communications manager12.0(1)SU1 | 12.0(1)SU2 | 12.0(1)SU3 | 12.0(1)SU4 | 12.0(1)SU5 | 12.5(1) | 12.5(1)SU1 | 12.5(1)SU2 | 12.5(1)SU3 | 12.5(1)SU4 | 12.5(1)SU5 | 12.5(1)SU6 | 12.5(1)SU7 | 12.5(1)SU7a | 14 | 14SU1 | 14SU2
  • cisco unified communications manager / cisco unity connection10.5(2)SU10 | 10.5(1) | 10.5(1)SU1 | 10.5(1)SU1a | 10.5(2) | 10.5(2)SU1 | 10.5(2)SU2 | 10.5(2)SU3 | 10.5(2)SU4 | 10.5(2)SU5 | 10.5(2)SU6 | 10.5(2)SU7 | 10.5(2)SU8 | 10.5(2)SU9 | 10.5(2)SU2a | 10.5(2)SU3a | 10.5(2)SU4a | 10.5(2)SU6a | 11.0.1 | 11.0(1a) | 11.0(1a)SU1 | 11.0(1a)SU2 | 11.0(1a)SU3 | 11.0(1a)SU3a | 11.0(1a)SU4 | 11.0.2 | 11.0.5 | 11.5(1) | 11.5(1)SU1 | 11.5(1)SU2 | 11.5(1)SU3 | 11.5(1)SU3a | 11.5(1)SU3b | 11.5(1)SU4 | 11.5(1)SU5 | 11.5(1)SU6 | 11.5(1)SU7 | 11.5(1)SU8 | 11.5(1)SU9 | 11.5(1)SU10 | 11.5(1)SU11 | 10.0(1)SU2 | 10.0(1) | 10.0(1)SU1
  • cisco unified communications manager im and presence service10.5(1) | 10.5(2) | 10.5(2a) | 10.5(2b) | 10.5(2)SU3 | 10.5(2)SU2a | 10.5(2)SU4a | 10.5(2)SU4 | 10.5(1)SU3 | 10.5(1)SU1 | 10.5(2)SU1 | 10.5(2)SU2 | 10.5(1)SU2 | 11.5(1) | 11.5(1)SU1 | 11.5(1)SU2 | 11.5(1)SU3 | 11.5(1)SU3a | 11.5(1)SU4 | 11.5(1)SU5 | 11.5(1)SU5a | 11.5(1)SU6 | 11.5(1)SU7 | 11.5(1)SU8 | 11.5(1)SU9 | 11.5(1)SU10 | 11.5(1)SU11 | 11.0(1) | 11.0(1)SU1 | 12.5(1) | 12.5(1)SU1 | 12.5(1)SU2 | 12.5(1)SU3 | 12.5(1)SU4 | 12.5(1)SU5 | 12.5(1)SU6 | 12.5(1)SU7 | 14 | 14SU1 | 14SU2 | 14SU2a | 10.0(1) | 10.0(1)SU1 | 10.0(1)SU2
  • cisco unified contact center enterprisen/a

1 vendor · 13 products

References

1 links