VULNERABILITY INTELLIGENCE

CVE-2021-31520

CVSS score8.1 HIGH

EPSS probability3.90%

CISA KEVNot currently listed

Published2021-05-10

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

nvd@nist.gov: CWE-287

Primary references

security@trendmicro.com — Patch, Vendor Advisory
security@trendmicro.com — Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry