Buffer overflow in Irfanview
CVE-2024-6821
IrfanView CIN File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CIN files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-23260.
Vulnerability class: Buffer Overflow
EPSS: 0.005 (41.3th 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 4.66 64bit, 4.66
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2024-6821?
- CVE-2024-6821 is a high-severity vulnerability in Irfanview, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2024-11-22.
- How severe is CVE-2024-6821?
- High severity. CVSS v3 base score is 7.8 out of 10.