CVE-2023-38831 is a critical vulnerability in RARLAB WinRAR before version 6.23 that allows arbitrary code execution when a user attempts to view a benign file within a specially crafted ZIP archive. The vulnerability arises from WinRAR incorrectly processing a folder with the same name as a benign file, leading to the execution of malicious content. This flaw carries a CVSS score of 7.8 (HIGH) due to its low attack complexity, requiring only user interaction, and its potential for high impact on confidentiality, integrity, and availability. It is actively exploited in the wild, with confirmed use in ransomware campaigns and by pro-Russia hacking groups for credential harvesting, and has garnered significant community and media attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 6.23CPE matchmatch criteria | cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.