CVE-2021-31520

HIGH

Trend Micro IM Security 1.6 and 1.6.5 - Weak Session Token Authentication Bypass

Title source: llm
STIX 2.1

Description

A weak session token authentication bypass vulnerability in Trend Micro IM Security 1.6 and 1.6.5 could allow an remote attacker to guess currently logged-in administrators' session session token in order to gain access to the product's web management interface.

References (2)

Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://success.trendmicro.com/solution/000286439
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-525/

Scores

CVSS v3 8.1
EPSS 0.0150
EPSS Percentile 81.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-287
Status published
Products (2)
trendmicro/im_security 1.6
trendmicro/im_security 1.6.5
Published May 10, 2021
Tracked Since Feb 18, 2026