What’s Vulnerable › Vulnerabilities

CVE-2020-23545

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-15 · updated 2026-06-17

Description

IrfanView 4.54 allows a user-mode write access violation starting at FORMATS!ReadXPM_W+0x0000000000000531.

Affected products

• IrfanView: 4.54

References

• https://github.com/nhiephon/Research/blob/master/Irfanview/0x0000000000000531.MD
• https://github.com/nhiephon/Research/blob/master/README.md
• https://www.irfanview.com/plugins.htm
• https://github.com/nhiephon/Research/blob/master/Irfanview/0x0000000000000531.MD
• https://github.com/nhiephon/Research/blob/master/README.md
• https://www.irfanview.com/plugins.htm

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