What’s Vulnerable › Vulnerabilities

CVE-2020-23567

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-11-05 · updated 2026-06-17
• Weakness: CWE-369

Description

Irfanview v4.53 allows attackers to to cause a denial of service (DoS) via a crafted JPEG 2000 file. Related to "Integer Divide By Zero starting at JPEG2000!ShowPlugInSaveOptions_W+0x00000000000082ea"

Affected products

• IrfanView: 4.53

References

• https://github.com/KamasuOri/publicResearch/tree/master/poc/irfanview/2
• https://github.com/KamasuOri/publicResearch/tree/master/poc/irfanview/2

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