CVE-2026-20172Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent. This vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-646
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- cisco
- NVD analysis
- Awaiting Analysis
- Record last updated
- May 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Cisco Cisco Enterprise Chat and Email cisco:enterprise_chat_and_email (from the name) | 11.6(1)_ES3; 11.6(1)_ES4; 12.0(1)_ES6; 11.6(1)_ES8; 12.0(1)_ES5a; 11.6(1)_ES9; 12.0(1)_ES6_ET1; 11.6(1)_ES6; and 91 more ranges | CNA record |
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.