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CVE-2025-20276 Cisco Unified Contact Center Express

Affected softwareCisco Unified Contact Center Express
Severity7.2 High CVSS 3.1 2 scores
WeaknessDeserialization of untrusted data (CWE-502)
Published4 Jun 2025
Updated17 Jun 2026

Description

A vulnerability in the web-based management interface of Cisco Unified CCX could allow an authenticated, remote attacker to execute arbitrary code on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.  This vulnerability is due to insecure deserialization of Java objects by the affected software. An attacker could exploit this vulnerability by sending a crafted Java object to an affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system of an affected device as a low-privilege user. A successful exploit could also allow the attacker to undertake further actions to elevate their privileges to root.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published a year ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 0.48% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review automated Upstream data
  • Record active
Decided by The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached
Finding This CVE names only products the Waratek agent cannot be installed into (cisco/unified_contact_center_express). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

CVSS

7.2 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.2 HIGH CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H NVD Primary published
CVSS 3.1 3.8 LOW CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N psirt@cisco.com Secondary

Affected software and releases

Products and versions

1 product, 60 version entries
SourceVendorProductSchemeAffected versions
nvd cisco unified contact center express generic 8.5\(1\) · 9.0\(2\)su3es04 · 10.0\(1\)su1 · 10.0\(1\)su1es04 · 10.5\(1\) · 10.5\(1\)su1 · 10.5\(1\)su1es10 · 10.6\(1\) · 10.6\(1\)su1 · 10.6\(1\)su2 · 10.6\(1\)su2es04 · 10.6\(1\)su3 · 10.6\(1\)su3es01 · 10.6\(1\)su3es02 · 10.6\(1\)su3es03 · 11.0\(1\)su1 · 11.0\(1\)su1es02 · 11.0\(1\)su1es03 · 11.5\(1\)es01 · 11.5\(1\)su1 · 11.5\(1\)su1es01 · 11.5\(1\)su1es02 · 11.5\(1\)su1es03 · 11.6\(1\) · 11.6\(1\)es01 · 11.6\(1\)es02 · 11.6\(2\) · 11.6\(2\)es01 · 11.6\(2\)es02 · 11.6\(2\)es03 · 11.6\(2\)es04 · 11.6\(2\)es05 · 11.6\(2\)es06 · 11.6\(2\)es07 · 11.6\(2\)es08 · 12.0\(1\) · 12.0\(1\)es01 · 12.0\(1\)es02 · 12.0\(1\)es03 · 12.0\(1\)es04 · 12.5\(1\) · 12.5\(1\)es01 · 12.5\(1\)su1 · 12.5\(1\)_su01_es01 · 12.5\(1\)_su01_es02 · 12.5\(1\)_su01_es03 · 12.5\(1\)es02 · 12.5\(1\)su2 · 12.5\(1\)_su02_es01 · 12.5\(1\)_su02_es02 · 12.5\(1\)_su02_es03 · 12.5\(1\)_su02_es04 · 12.5\(1\)es03 · 12.5\(1\)su3 · 12.5\(1\)_su03_es01 · 12.5\(1\)_su03_es02 · 12.5\(1\)_su03_es03 · 12.5\(1\)_su03_es04 · 12.5\(1\)_su03_es05 · 12.5\(1\)_su03_es06

References

URLTags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uccx-multi-UhOTvPGL Vendor Advisory

Timeline

Published2025-06-04By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.