CVE-2019-3663

CRITICAL

McAfee Advanced Threat Defense < 4.8 - Unprotected Storage of Credentials

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-3663. PoCs published by funoverip.

AI-analyzed exploit summary This PoC demonstrates an authentication bypass via a hardcoded root password in McAfee ATD. The exploit leverages the 'lb' user's custom shell to execute arbitrary commands, achieving root access.

Description

Unprotected Storage of Credentials vulnerability in McAfee Advanced Threat Defense (ATD) prior to 4.8 allows local attacker to gain access to the root password via accessing sensitive files on the system. This was originally published with a CVSS rating of High, further investigation has resulted in this being updated to Critical. The root password is common across all instances of ATD prior to 4.8. See the Security bulletin for further details

Exploits (1)

nomisec WORKING POC 1 stars
by funoverip · poc
https://github.com/funoverip/mcafee_atd_CVE-2019-3663

This PoC demonstrates an authentication bypass via a hardcoded root password in McAfee ATD. The exploit leverages the 'lb' user's custom shell to execute arbitrary commands, achieving root access.

Classification
Working Poc 100%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: McAfee Advanced Threat Defense ATD 4.6.x and earlier
No auth needed
Prerequisites: Network access to the target system · SSH access to port 2222
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0044
EPSS Percentile 63.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-522
Status published
Products (1)
mcafee/advanced_threat_defense < 4.8
Published Nov 14, 2019
Tracked Since Feb 18, 2026