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Threats / RARLAB / CVE-2025-8088
CVE-2025-8088 · EUVD no mirror located · GCVE no mirror located Verified 2026-06-22

RARLAB WinRAR vulnerability

WinRAR for Windows contains a path traversal vulnerability that could allow attackers to execute arbitrary code through specially crafted archive files.

Verdict

Today item — known-exploited.

A path traversal flaw in WinRAR enables code execution when processing malicious archives. The vulnerability is actively exploited in the wild, presenting immediate risk to users who extract untrusted RAR files.

CISA KEV Yes · 2025-08-123EPSS 0.81348 (verify live)4Exploit Weaponized · public PoC5
01

Is it exploitable?

— the evidence, ranked above the score
Exploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
50 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-08-12).
CISA KEV ↗Confirmed
Probability (EPSS)
EPSS 0.81348 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: RARLAB, WinRAR. Confirm exact fixed builds in the vendor advisory.
NVD ↗Reported
Weakness (CWE)
Mapped to CWE-35 CWE-35 — weakness family: Path traversal / file.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
NVD ↗Reported
WeaknessCWE-35 · CWE-35Path traversal / file
02

Who’s exploiting it?

— attribution turns risk into urgency
Attribution not established

No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.

03

Why it matters

— the attack path, told twice: adversary, then board
1

Front door — unauthenticated access narrative 1

Attacker
I craft a malicious RAR archive with path traversal sequences that escape the intended extraction directory.
Business
Users unknowingly extract archives containing files placed in system or application directories.
2

Keys to the kingdom — privilege/identity takeover narrative 2

Attacker
I position executable files or scripts to overwrite legitimate binaries or configuration files during extraction.
Business
Legitimate applications or system processes load compromised files, enabling code execution in user context.
3

Lateral reach — past segmentation narrative 3

Attacker
I distribute the malicious archive through email, file sharing, or compromised websites targeting WinRAR users.
Business
Endpoints become compromised when users extract archives, leading to data theft, malware installation, or lateral movement.
04

What to do

— defensible action
  • Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05

Coverage & confidence

— what we know, and what we don’t

Established (cited)

  • KEV listing (CISA)
  • EPSS probability (FIRST)
  • Weaponized exploit available (VulnCheck)
  • 50 reported-exploitation source(s)
  • CWE weakness mapping (NVD)
  • Public exploit availability
  • Catalogued by ESET (CNA)
  • Coverage gaps — stated, not hidden

  • No EUVD / GCVE mirror in feed — single-authority dependency for the identifier.
  • EPSS & exposure are time-varying; verify live at the source.
  • Threat-actor attribution not established from feed data — absence of a name is not absence of compromise.
  • No finder/reporter credit recorded in the public CVE entry — the work behind this find is unattributed.
  • Disclosure & credit2
    Catalogued by ESETCNA
    Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.