CVE-2020-23546
HighCVSS 7.8Exploitation Probability (EPSS)
Elevated risk56th percentile - higher than 56% of all known CVEs
Summary
IrfanView 4.54 contains a vulnerability that allows an attacker to cause a denial of service or possibly other unspecified impacts via a crafted XBM file. The issue is related to data from a faulting address being used as arguments in a function call in FORMATS!ReadMosaic.
Risk Assessment
The risk for the organization is the potential disruption of IrfanView by a malicious XBM file, leading to productivity loss or possibly further unspecified security impacts.
Recommendation
It is recommended to update IrfanView to the latest available version that includes fixes for this vulnerability. Avoid opening XBM files from untrusted sources.
Other vulnerabilities in IrfanView
See all- CVE-2026-121517Medium
A vulnerability was detected in IrfanView 4.76.0.0 on Win64 in an unknown functionality of the TIFF Wang Annotation Handler component, resulting in a heap-based buffer overflow. The attack is possible remotely, though of high complexity and difficult to exploit; the exploit is now public. The vendor confirms that the TIF-Annotations option is OFF by default, so normal users are not affected, and rates the danger level as low.
- CVE-2017-2813High
An exploitable integer overflow vulnerability exists in the JPEG 2000 parser functionality of IrfanView 4.44. A specially crafted jpeg2000 image can cause an integer overflow leading to wrong memory allocation resulting in arbitrary code execution.
- CVE-2021-46064High
IrfanView 4.59 is vulnerable to a buffer overflow in the function at address 0x413c70 (in the 32-bit version). The vulnerability is triggered when the user opens a malicious TIFF image.
Original NVD description (English source)
IrfanView 4.54 allows attackers to cause a denial of service or possibly other unspecified impacts via a crafted XBM file, related to a "Data from Faulting Address is used as one or more arguments in a subsequent Function Call starting at FORMATS!ReadMosaic+0x0000000000000981.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS