critical Known exploitedREV. 01

CVE-2025-8088WinRAR — crafted archive writes outside the extraction path

The Windows build of WinRAR lets a crafted archive place a file outside the folder the user chose, which is enough to get the attacker's code run. It was exploited as a zero-day for weeks by two groups.

YOUR NEXT MOVE

Update WinRAR to the patched release now; it ran as a zero-day and ransomware crews use it, so check startup folders on machines that opened outside archives.

Read the risk

THE VITAL STATS
CVSS score
8.8/ 10
CVSS v3.1
EPSS probability
94%
Likelihood of exploitation
Attack complexity
Low
Conditions needed to exploit
Known exploited
Yes — CISA KEV
CVE published
2025-08-08
Added to KEV
2025-08-12
Exploit published
Not recorded
Confidence
high
Kill chain
execution
MITRE ATT&CK
—
Severity
critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attacker needsThe user must open a crafted archive on Windows.

Behind the card

5 REFERENCES
Field-level provenanceTRACE THE SOURCES +

Which source supports each field, when it was retrieved, and who extracted it.

FieldsSourceRetrievedExtractorConfidence
cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_atnvd.nist.gov2026-09-24scrty-crds-pipeline/0.1high
exploitation.known_exploited, exploitation.kev_addedcisa.gov2026-09-24scrty-crds-pipeline/0.1high
epssapi.first.org2026-09-24scrty-crds-pipeline/0.1high
title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisitesnvd.nist.gov2026-09-24claude-codehigh

Printing history

THE RECORD
  1. r1Initial base card

First printing. This card has not been reprinted since publication.

crds:cve-2025-8088 · CRDS 0.1 · Issued 2026-09-24