Vulnerability in Irfanview

CVE-2020-23545

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

EPSS: 0.013 (66.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Irfanview — versions 4.54
N/a — versions n/a

Public proof-of-concept exploits

nhiephon/Research

References

cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-23545?: CVE-2020-23545 is a high-severity vulnerability in Irfanview. CVSS score: 7.8/10. Published 2021-12-15.
How severe is CVE-2020-23545?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-23545 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.