A CSRF protection bypass vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 could allow an attacker to get a vic…

published 2020-12-17 5y ago modified 2026-06-17 4mo ago also EUVD-2020-29327

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits: 0; none known

A CSRF protection bypass vulnerability in Trend Micro InterScan Web Security Virtual Appliance 6.5 SP2 could allow an attacker to get a victim's browser to send a specifically encoded request without requiring a valid CSRF token.

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Exploit prediction

1.15% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

sec-consult.com https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-trend-micro-interscan-web-security-virtual-appliance/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

Trend Micro Trend Micro InterScan Web Security Virtual Appliance

Classification

Weakness

CWE-352 Cross-Site Request Forgery

References

sec-consult.com /vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-trend-micro-interscan-web-security-virtual-ap
exploit, third-party-advisory
success.trendmicro.com /solution/000283077
vendor-advisory

Sources

CVE List CVE-2020-8461
NVD CVE-2020-8461

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