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Exploited vulnerability · CISA KEV

Is CVE-2025-6218 exploited? Yes: in CISA KEV since 9 Dec 2025

Gociux · RARLAB WinRAR · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-6218, RARLAB WinRAR Path Traversal Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 9 Dec 2025, 171 days after it was published. It affects RARLAB WinRAR. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 9 Dec 2025
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity7.8CVSS 3.0 · high
US federal due30 Dec 2025BOD 22-01 deadline

What it is

RARLAB WinRAR contains a path traversal vulnerability allowing an attacker to execute code in the context of the current user.

VendorRARLAB (5 exploited CVEs in KEV)
ProductWinRAR
VulnerabilityRARLAB WinRAR Path Traversal Vulnerability
WeaknessCWE-22
Published21 Jun 2025
Added to KEV9 Dec 2025
Reported by (CNA)zdi

What to do

  1. Check whether you run it. Look for WinRAR in your asset inventory, including appliances and cloud images. Stack check lists every exploited RARLAB CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 21 Jun 2025.
  4. Get told next time. Email alerts when CISA adds a CVE for RARLAB.

Other exploited CVEs in WinRAR

References

Questions

Is CVE-2025-6218 being exploited?

Yes. CISA added CVE-2025-6218 to the Known Exploited Vulnerabilities catalog on 9 Dec 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-6218 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2025-6218?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check RARLAB's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected WinRAR and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in December 2025 · RARLAB scorecard · act-now radar.

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