What’s Vulnerable › Vulnerabilities

CVE-2021-28835

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-08-11 · updated 2026-06-17
• Weakness: CWE-120

Description

Buffer Overflow vulnerability in XNView before 2.50, allows local attackers to execute arbitrary code via crafted GEM bitmap file.

Affected products

• XnView: before 2.50 — fixed in 2.50

How to fix

Upgrade to a fixed version: XnView 2.50. Check the vendor advisory for mitigations.

References

• https://newsgroup.xnview.com/viewtopic.php?f=35&t=44679
• https://www.xnview.com/en/xnview/#changelog
• https://newsgroup.xnview.com/viewtopic.php?f=35&t=44679
• https://www.xnview.com/en/xnview/#changelog

Get alerted when CVE-2021-28835 or the next vulnerability affects your stack