CVE-2025-8088
High 8.8 Exploited in the wild (KEV) Used in ransomware campaigns
Confirmed active exploitation — CISA KEV catalog
- Name
- RARLAB WinRAR Path Traversal Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description
A path traversal vulnerability affecting the Windows version of WinRAR allows the attackers to execute arbitrary code by crafting malicious archive files. This vulnerability was exploited in the wild and was discovered by Anton Cherepanov, Peter Košinár, and Peter Strýček from ESET.
Metrics
- CVSS 3.1
-
8.8 (HIGH)
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 4.0
-
8.4 (HIGH)
Score source: CNA
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 94% (percentile: 100) as of 1 November 2026
- CWE
- CWE-35
Affected products
rarlab: winrar; microsoft: windows; dtsearch: dtsearch
References
- https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=283&cHa… Release Notes
- https://arstechnica.com/security/2025/08/high-severity-winrar-0-day-exploited-f… Press/Media Coverage
- https://support.dtsearch.com/faq/dts0245.htm Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-8088-detect-winrar-zero-day Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-8088-mitigate-winrar-zero-day-u… MitigationThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025… US Government Resource
- https://www.welivesecurity.com/en/eset-research/update-winrar-tools-now-romcom-… Press/Media Coverage