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TI-2026-16380 Aliases CVE-2026-20172GHSA-rx97-pwc5-6v32

Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability

Priority LOW 19CWE-646Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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. 

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00125 2nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Enterprise Chat and Email11.6(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; 11.6(1)_ES5; 12.5(1)_ET1; 12.5(1); 12.5(1)_ES3_ET1; 12.0(1)_ES3; 11.6(1)_ES11; 12.0(1)_ES4; 12.0(1)_ES5; 11.6(1)_ES2; 11.6(1)_ES9a; 11.6(1)_ES10; 12.0(1)_ES1; 12.0(1); 12.5(1)_ES3; 12.6(1); 11.5(1); 12.0(1)_ES2; 11.6(1)_ES7; 12.5(1)_ES2; 12.6(1)_ET1; 11.6(1); 12.5(1)_ES1; 12.6(1)_ET2; 12.5(1)_ES3_ET2; 12.0(1)_ES6_ET2; 12.6(1)_ES1; 12.5(1)_ES4; 11.6(1)_ES12; 12.6(1)_ET3; 12.5(1)_ES4_ET1; 12.0(1)_ES6_ET3; 12.6(1)_ES1_ET1; 12.6(1)_ES2; 12.6_ES2_ET1; 12.5(1)_ES5; 12.6_ES2_ET2; 12.0(1)_ES7; 12.6_ES2_ET3; 12.0(1)_ES7_ET1; 12.5(1)_ES5_ET1; 12.6_ES2_ET4; 12.6(1)_ES3; 11.6(1)_ES12_ET1; 12.6_ES3_ET1; 12.5(1)_ES6; 12.6_ES3_ET2; 12.6(1)_ES4; 12.5(1)_ES7; 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; 12.5(1)_ES8; 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; 12.5(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; 12.6(1)_ES8_ET2; 12.6(1)_ES9; 12.6(1)_ES9_ET1; 12.5(1)_ES9; 12.6(1)_ES9_ET2; 12.6(1)_ES9_ET3; 12.6(1)_ES10; 12.6(1)_ES10_ET1; 15.0(1); 12.6(1)_ES11; 15.0(1)_ET1; 15.0(1)ES202508; 12.6(1)_ES11_ET1; 12.6(1)_ES11_ET2; 12.6(1)_ES12; 15.0(1)ES202511; 12.6(1)_ES12_ET1; 15.0(1)ES202511_ET1; 12.5(1)_ES10—No fix listedCNA
  • Cisco Enterprise Chat and Email VendorCisco Affected 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; 11.6(1)_ES5; 12.5(1)_ET1; 12.5(1); 12.5(1)_ES3_ET1; 12.0(1)_ES3; 11.6(1)_ES11; 12.0(1)_ES4; 12.0(1)_ES5; 11.6(1)_ES2; 11.6(1)_ES9a; 11.6(1)_ES10; 12.0(1)_ES1; 12.0(1); 12.5(1)_ES3; 12.6(1); 11.5(1); 12.0(1)_ES2; 11.6(1)_ES7; 12.5(1)_ES2; 12.6(1)_ET1; 11.6(1); 12.5(1)_ES1; 12.6(1)_ET2; 12.5(1)_ES3_ET2; 12.0(1)_ES6_ET2; 12.6(1)_ES1; 12.5(1)_ES4; 11.6(1)_ES12; 12.6(1)_ET3; 12.5(1)_ES4_ET1; 12.0(1)_ES6_ET3; 12.6(1)_ES1_ET1; 12.6(1)_ES2; 12.6_ES2_ET1; 12.5(1)_ES5; 12.6_ES2_ET2; 12.0(1)_ES7; 12.6_ES2_ET3; 12.0(1)_ES7_ET1; 12.5(1)_ES5_ET1; 12.6_ES2_ET4; 12.6(1)_ES3; 11.6(1)_ES12_ET1; 12.6_ES3_ET1; 12.5(1)_ES6; 12.6_ES3_ET2; 12.6(1)_ES4; 12.5(1)_ES7; 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; 12.5(1)_ES8; 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; 12.5(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; 12.6(1)_ES8_ET2; 12.6(1)_ES9; 12.6(1)_ES9_ET1; 12.5(1)_ES9; 12.6(1)_ES9_ET2; 12.6(1)_ES9_ET3; 12.6(1)_ES10; 12.6(1)_ES10_ET1; 15.0(1); 12.6(1)_ES11; 15.0(1)_ET1; 15.0(1)ES202508; 12.6(1)_ES11_ET1; 12.6(1)_ES11_ET2; 12.6(1)_ES12; 15.0(1)ES202511; 12.6(1)_ES12_ET1; 15.0(1)ES202511_ET1; 12.5(1)_ES10 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:cisco:enterprise_chat_and_email:*:*:*:*:*:*:*:*——Cisco
  • cpe:2.3:a:cisco:enterprise_chat_and_email:*:*:*:*:*:*:*:* Versions — — ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20172
  2. 2026-10-03 Alias added: GHSA-rx97-pwc5-6v32

References

Other 1

  • TI-2026-74174 Arbitrary file write in Cisco Secure Email Gateway via AMP feature KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53490 Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53489 Cisco Secure Email Gateway SQL Injection Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-53488 Cisco Identity Services Engine Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16388 Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16344 Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
See all 7059 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences