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Fencer Vulns
high 8.8

CVE-2025-8088 kev+ ransomware in the critical feed json

Path traversal vulnerability in WinRAR

published 2025-08-08 15 mo ago modified 2026-08-11 2 mo ago also EUVD-2025-23983

cvss
8.8
version 3.1, NVD
cisa kev
Exploited
added 2025-08-12, used in ransomware
epss
94.0%
EPSS 94.0% chance of exploitation in 30 days, percentile 99.8%
public exploits
0
none known

Summary

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.

Patch / fix

cisa 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.

  • cisco clam_antivirus 1.4.6-0, 1.5.4-0
  • cisco clamav 1.4.6-0, 1.5.4-0
  • clamav clamav 1.4.6-0, 1.5.4-0
  • clamavs clamav 1.4.6-0, 1.5.4-0
  • clam_anti-virus clamav 1.4.6-0, 1.5.4-0
  • clamav SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +6 more 1.5.4-150400.13.11.1
  • clamav SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Basesystem 15 SP7 1.5.4-150600.18.31.1
  • clamav SLES 16.0, SLES for SAP applications 16.0 1.5.4-160000.1.1
  • clamav SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 1.5.4-3.59.1

suse advisories SUSE-SU-2026:4208-1SUSE-SU-2026:4180-1SUSE-SU-2026:4179-1SUSE-SU-2026:23706-1SUSE-SU-2026:23727-1

  • clamav openSUSE Leap 16.0 1.5.4-160000.1.1
  • clamav openSUSE Tumbleweed 1.5.4-1.1

opensuse advisories openSUSE-SU-2026:21831-1openSUSE-SU-2026:11583-1

  • clamav Alpine 3.24 1.4.6-r0

alpine advisories ALPINE-CVE-2025-8088

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Timeline

  1. Published
  2. CISA SSVC: exploitation active
  3. Added to CISA KEV
  4. CISA patch deadline

Known exploited

Added
14 mo ago
Patch by
2025-09-02 (14 mo ago)
Ransomware
Known to be used in ransomware campaigns
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.
Vendor, product
RARLAB, WinRAR
CISA name
RARLAB WinRAR Path Traversal Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
14 mo ago

Exploit prediction

94.01% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 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
CNA 4.0 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
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • win.rar GmbH WinRAR

Classification

Weakness
  • CWE-35 Path Traversal: '.../...//'

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added ClamAV affected info.