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Type Vulnerability

RARLAB · Path traversal

RARLAB WinRAR Path Traversal Vulnerability

1 sourceCVE-2025-8088

At a glance

Medium
7-day window, from the last update
ActiveConfirmed in-the-wild exploitation
Evidence-weighted, not popularity
Signal

Actively exploited in the wild — prioritise confirming exposure.

Why Medium

Medium rather than High: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on RARLAB WinRAR, treat it as High.

Briefing

  • Do not treat uncorroborated claims as confirmed breaches.

Questions to ask IT

  • Do we run RARLAB WinRAR, and which versions?
  • Is any of it reachable from the internet?
  • Have we checked whether it has already been used against us?
  • If it is not yet patched, what mitigation is in place, and will the fix be done by 11 Nov?

Next steps

  1. Confirm exposure, mitigation status and any service interruption risk.

Summary

  • RARLAB WinRAR contains a path traversal vulnerability affecting the Windows version of WinRAR. This vulnerability could allow an attacker to execute arbitrary code by crafting malicious archive files.
  • CVE-2025-8088 is listed in known-exploited catalogue (exploitation in the wild)
  • 6% estimated chance of exploitation in 30 days; 99.
  • Authoritative catalogues report active exploitation of this vulnerability.

Why this matters in the UK

  • Known-exploited catalogue reports exploitation in the wild

Products and services involved

All 10 reports in this story

Pulse

Last checked 4d ago · Recheck overdue since 5 Nov 2026, 23:39 UK time · 2 quiet checks collapsed

Signal
4 Nov 2026, 23:39 UK time · 4d ago

CISA marks known . Suggested changed to 7d.

Listed on the — prioritise confirming exposure and patching.

EscalationDe-escalationCritical / liveWhat these mean
Drag to pan · Ctrl / ⌘ + scroll or pinch to zoom9 events

1 quiet check hidden.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ConfirmedHeadline90% confidence

    RARLAB WinRAR Path Traversal Vulnerability

  • ConfirmedSummary fact75% confidence

    RARLAB WinRAR contains a path traversal vulnerability affecting the Windows version of WinRAR. This vulnerability could allow an attacker to execute arbitrary code by crafting malicious archive files. Affects RARLAB WinRAR. Known ransomware campaign use: Unknown. 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.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2025-8088

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2025-8088 is listed in known-exploited catalogue (exploitation in the wild)

  • ConfirmedEstimated attack likelihood95% confidence

    CVE-2025-8088 has estimated attack likelihood 0.94551 (~94.6% estimated chance of exploitation in 30 days; 99.8th percentile) as of 2026-07-31 — probability signal, not confirmed exploitation