SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-18191

A privilege escalation vulnerability in the Trend Micro Deep Security as a Service Quick Setup cloud formation template could allow an authenticated entity with certain unrestricted AWS execution privileges to escalate to full privileges within the…

HIGH 8.8EPSS 2.19%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A privilege escalation vulnerability in the Trend Micro Deep Security as a Service Quick Setup cloud formation template could allow an authenticated entity with certain unrestricted AWS execution privileges to escalate to full privileges within the target AWS account.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
2.19% probability · 82th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-459
Affected
trendmicro/deep security as a service
Source
security@trendmicro.com
EPSS trend
0%3%5%26 October 2026: 2.19%26 October 202626 October 2026

EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.