CVE-2026-20172 — The Lite Agent Feature Of Cisco Enterprise Chat And Email (E Vulnerability
CVE-2026-20172 — 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 Age
What This Means For You
- If your environment is affected by CWE-646, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-20172 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-20172 - Malicious File Upload to Cisco ECE Lite Agent
title: CVE-2026-20172 - Malicious File Upload to Cisco ECE Lite Agent
id: scw-2026-05-06-ai-1
status: experimental
level: high
description: |
Detects attempts to upload files to the Cisco Enterprise Chat and Email (ECE) Lite Agent feature, which is the initial vector for CVE-2026-20172. This rule specifically targets the known upload endpoint and HTTP POST method, indicating a potential exploitation attempt.
author: SCW Feed Engine (AI-generated)
date: 2026-05-06
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-20172/
tags:
- attack.initial_access
- attack.t1189
logsource:
category: webserver
detection:
selection:
cs-uri|contains:
- '/ece/liteagent/upload'
cs-method:
- 'POST'
sc-status:
- '200'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-20172 | vulnerability | CVE-2026-20172 |
| CWE-646 | weakness | CWE-646 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 06, 2026 at 20:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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