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VulnerabilityPublished Updated

CVE-2025-8088: win.rar WinRAR · Path Traversal

Affects win.rar WinRARSource CVE Database V5

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Exploited in the wild · used in ransomware campaigns · KEV due 2 Sep 2025 · 94% EPSS : apply the vendor's fix or mitigations to win.rar WinRAR now.

Data as of 6 Nov 2026, 23:24 UTC

CVSS 4.0 base score
8.4High
How severe the flaw is on the 0–10 CVSS scale.
KEV deadline
 US federal agencies must patch by this date; a sensible deadline for everyone else. Other KEV due dates
Ransomware
Used in ransomware campaigns
EPSS
94.0% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
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

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 8 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: evidence found.

    Listed in CISA KEV 4 days after disclosure

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by ESET, spol. s r.o.

    , 16 days before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. In Threat Radar

    record ingested

    , 21 minutes after disclosure

  4. Added to CISA KEV (opens in a new tab)

    exploitation confirmed · ransomware use known

    , 4 days after disclosure

  5. KEV remediation due

    US federal deadline

    , 25 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, CISA KEV (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

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 software

ProductAffectedFixed in
win.rar GmbH WinRARAffected
  • =0
Fixed in–

Description

CVE-2025-8088 is a path traversal vulnerability in the Windows version of WinRAR that allows attackers to execute arbitrary code via crafted malicious archive files. It has been exploited in the wild and is associated with known ransomware campaigns. The vulnerability was discovered by researchers from ESET and carries a high severity rating with a CVSS 4.0 score of 8.4.

Reports on CVE-2025-8088

References

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