What’s Vulnerable › Vulnerabilities

CVE-2021-27362

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-02-17 · updated 2026-06-17
• Weakness: CWE-125

Description

The WPG plugin before 3.1.0.0 for IrfanView 4.57 has a Read Access Violation on Control Flow starting at WPG!ReadWPG_W+0x0000000000000133, which might allow remote attackers to execute arbitrary code.

Affected products

• IrfanView Wpg: before 3.1.0.0 — fixed in 3.1.0.0

How to fix

Upgrade to a fixed version: IrfanView Wpg 3.1.0.0. Check the vendor advisory for mitigations.

References

• https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-irfanview-wpg/
• https://www.irfanview.com/plugins.htm
• https://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-irfanview-wpg/
• https://www.irfanview.com/plugins.htm

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