01 Record
CVE-2025-20139
A vulnerability in chat messaging features of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is
HighPUBLISHEDCNA: cisco
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
02 Description
A vulnerability in chat messaging features of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.66% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 51.5% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2025-04-02 16:16Z1 YR AGO
- Last updated
- 2025-04-02 16:33Z1 YR AGO
- Reserved
- 2024-10-10
- Assigning CNA
- cisco
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-185Incorrect Regular ExpressionClass
- Data version
- 5.1
- Document digest
- d9363502b6ed73638f0c6f4a32a3d66e244a5fc1c9f80de33bfe541c427141be
05 Affected products
VendorProductVersionsPlatforms
CiscoCisco Enterprise Chat and Email11.5(1), 11.6(1), 11.6(1)_ES2, 11.6(1)_ES3, 11.6(1)_ES4, 11.6(1)_ES5, 11.6(1)_ES6, 11.6(1)_ES10, 11.6(1)_ES11, 11.6(1)_ES7, 11.6(1)_ES8, 11.6(1)_ES9, 11.6(1)_ES9a, 11.6(1)_ES12, 11.6(1)_ES12_ET1, 12.0(1), 12.0(1)_ES1, 12.0(1)_ES2, 12.0(1)_ES3, 12.0(1)_ES4, 12.0(1)_ES5, 12.0(1)_ES5a, 12.0(1)_ES6, 12.0(1)_ES6_ET1, 12.0(1)_ES6_ET2, 12.0(1)_ES6_ET3, 12.0(1)_ES7, 12.0(1)_ES7_ET1, 12.5(1), 12.5(1)_ES1, 12.5(1)_ES2, 12.5(1)_ES3, 12.5(1)_ES3_ET1, 12.5(1)_ET1, 12.5(1)_ES4, 12.5(1)_ES3_ET2, 12.5(1)_ES4_ET1, 12.5(1)_ES5, 12.5(1)_ES5_ET1, 12.5(1)_ES6, 12.5(1)_ES7, 12.5(1)_ES8, 12.5(1)_ES8_ET1, 12.5(1)_ES3_ET3, 12.5(1)_ES5_ET2, 12.5(1)_ES6_ET1, 12.5(1)_ES4_ET2, 12.5(1)_ES7_ET1, 12.5(1)_ES9, 12.6(1), 12.6(1)_ET1, 12.6(1)_ET2, 12.6(1)_ES1, 12.6(1)_ET3, 12.6(1)_ES1_ET1, 12.6(1)_ES2, 12.6(1)_ES3, 12.6(1)_ES4, 12.6(1)_ES4_ET1, 12.6(1)_ES5, 12.6(1)_ES5_ET1, 12.6(1)_ES5_ET2, 12.6(1)_ES6, 12.6(1)_ES6_ET1, 12.6(1)_ES6_ET2, 12.6(1)_ES7, 12.6(1)_ES8, 12.6(1)_ES4_ET2, 12.6(1)_ES3_ET3, 12.6(1)_ES2_ET5, 12.6(1)_ES1_ET2, 12.6(1)_ES8_ET1, 12.6(1)_ES7_ET1, 12.6(1)_ES6_ET3, 12.6(1)_ES5_ET3, 12.6(1)_ES8_ET2, 12.6(1)_ES9, 12.6(1)_ES9_ET1, 12.6(1)_ES9_ET2, 12.6(1)_ES9_ET3, 12.6_ES2_ET1, 12.6_ES2_ET2, 12.6_ES2_ET3, 12.6_ES2_ET4, 12.6_ES3_ET1, 12.6_ES3_ET2—
06 References
- sec.cloudapps.cisco.comcisco-sa-ece-dos-tC6m9GZ8https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-dos-tC6m9GZ8