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No exploitation reported

CVE-2025-20242

No exploitation reported by the sources we read.

  • Published2025-05-21
  • WeaknessCWE-284

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability in the Cloud Connect component of Cisco Unified Contact Center Enterprise (CCE) could allow an unauthenticated, remote attacker to read and modify data on an affected device. This vulnerability is due to a lack of proper authentication controls. An attacker could exploit this vulnerability by sending crafted TCP data to a specific port on an affected device. A successful exploit could allow the attacker to read or modify data on the affected device.

Timeline

dates in UTC
  1. 2025-05-2117:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-20242?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-20242?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Cisco unified contact center enterprise
BranchAffectedFixed in
12.6= 12.6\(2\)es2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2025-05-21
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.16.5read 2026-10-23
  • NVDCVSS 3.19.1read 2026-10-23
  • CNAweakness (CWE)CWE-284read 2026-10-23
  • FIRST EPSSEPSS score5.9 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
2025-05-21
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-20242?

A vulnerability in the Cloud Connect component of Cisco Unified Contact Center Enterprise (CCE) could allow an unauthenticated, remote attacker to read and modify data on an affected device. This vulnerability is due to a lack of proper authentication controls. An attacker could exploit this vulnerability by sending crafted TCP data to a specific port on an affected device. A successful exploit could allow the attacker to read or modify data on the affected device.

Is CVE-2025-20242 actively exploited?

Active exploitation of CVE-2025-20242 has not been confirmed. Its EPSS score was 5.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-20242?

CVE-2025-20242 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

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