CVE-2025-8088
HighExploitedPublic exploitA path traversal vulnerability affecting the Windows version of WinRAR allows the attackers to execute arbitrary code by crafting malicious archive files.
Published Aug 8, 2025 · Updated Aug 11, 2026
Key Facts
Patch immediately- CVE-2025-8088 is a high-severity vulnerability (CVSS 8.4 v4) affecting Dtsearch, WinRAR (Rarlab), clamav (alpine) and 7 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 8, 2025 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 95% probability of exploitation in the next 30 days.
- Fixed versions are available, including clamav 1.4.6-r0, clamav 1.5.4-1.1, clamav 1.5.4-150400.13.11.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v4
8.4
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 (30-day exploit likelihood)
95%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2025-8088 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Aug 12, 2025 | Sep 2, 2025 | Known |
| Industry KEV feed | Aug 8, 2025 | Sep 2, 2025 | Known |
| CIRCL KEV | Aug 12, 2025 | Sep 2, 2025 | Not reported |
| ENISA EUVD | Aug 12, 2025 | n/a | Not reported |
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.
Affected Products
145 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| DtsearchDtsearch | See advisory | 2023.01 |
| WinRARRarlab | See advisory | 7.13 |
| clamavalpine | See advisory | 1.4.6-r0 |
| clamav-develsuse | See advisory | 1.5.4-160000.1.1 |
| clamav-docs-htmlsuse | See advisory | 1.5.4-160000.1.1 |
Patched Releases
clamav
1.4.6-r0, 1.5.4-1.1, 1.5.4-150400.13.11.1, 1.5.4-150600.18.31.1, 1.5.4-160000.1.1, 1.5.4-3.59.1
clamav-devel
1.5.4-1.1, 1.5.4-150400.13.11.1, 1.5.4-150600.18.31.1, 1.5.4-160000.1.1, 1.5.4-3.59.1
clamav-docs-html
1.5.4-1.1, 1.5.4-150400.13.11.1, 1.5.4-150600.18.31.1, 1.5.4-160000.1.1, 1.5.4-3.59.1
clamav-milter
1.5.4-1.1, 1.5.4-150400.13.11.1, 1.5.4-150600.18.31.1, 1.5.4-160000.1.1, 1.5.4-3.59.1
Dtsearch
2023.01
libclamav12
1.5.4-1.1, 1.5.4-150400.13.11.1, 1.5.4-150600.18.31.1, 1.5.4-160000.1.1, 1.5.4-3.59.1
libclammspack0
1.5.4-1.1, 1.5.4-150400.13.11.1, 1.5.4-150600.18.31.1, 1.5.4-160000.1.1, 1.5.4-3.59.1
libclamunrar12
1.5.4-150400.13.11.1, 1.5.4-150600.18.31.1, 1.5.4-160000.1.1, 1.5.4-3.59.1
libfreshclam4
1.5.4-1.1, 1.5.4-150400.13.11.1, 1.5.4-150600.18.31.1, 1.5.4-160000.1.1, 1.5.4-3.59.1
WinRAR
7.13
Timeline
Publicly disclosed
Aug 8, 2025
Added to Industry KEV feed
Aug 8, 2025
Added to CISA KEV
Aug 12, 2025
Added to CIRCL KEV
Aug 12, 2025
Added to ENISA EUVD
Aug 12, 2025
Last updated
Aug 11, 2026
Weakness Type
- CWE-35 Path Traversal: '.../...//'
References
- advisoryhttps://support.dtsearch.com/faq/dts0245.htm
- advisoryhttps://www.vicarius.io/vsociety/posts/cve-2025-8088-detect-winrar-zero-day
- advisoryhttps://www.vicarius.io/vsociety/posts/cve-2025-8088-mitigate-winrar-zero-day-using-srp-and-ifeo
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
A path traversal vulnerability affecting the Windows version of WinRAR allows the attackers to execute arbitrary code by crafting malicious archive files.
Affected: Dtsearch; WinRAR (Rarlab); clamav (alpine), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 8, 2025 and is known to be used in ransomware campaigns.
Yes. It was added on Aug 12, 2025 with a federal remediation due date of Sep 2, 2025.
Public exploit code is available.
Fixed versions are available, including clamav 1.4.6-r0, clamav 1.5.4-1.1, clamav 1.5.4-150400.13.11.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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