CVE-2025-8088Known exploitationPublic exploit

Arbitrary code execution via ADS path traversal

Published Aug 8, 2025 · Updated Aug 11, 2026

Path traversal in RARLAB WinRAR 7.12 and earlier allows attackers to execute arbitrary code through a crafted RAR archive. During extraction, WinRAR accepts parent-directory segments embedded in NTFS alternate data stream names and writes hidden files outside the chosen destination. A victim must open or extract the archive; attackers can place a shortcut in the Startup folder and a payload in a user-writable directory for execution at login.

CVSS severity8.4
High
EPSS probability93.82%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in RARLAB WinRAR 7.12 and earlier allows attackers to execute arbitrary code through a crafted RAR archive. During extraction, WinRAR accepts parent-directory segments embedded in NTFS alternate data stream names and writes hidden files outside the chosen destination. A victim must open or extract the archive; attackers can place a shortcut in the Startup folder and a payload in a user-writable directory for execution at login.

The record

CVE
CVE-2025-8088
Published
Aug 8, 2025
Updated
Aug 11, 2026
Vendor
RARLAB
Product
WinRAR
Classifications
CWE-35, CAPEC-549, T1204.002, T1547.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 18, 2025Exploitation reportedRomCom zero-day exploitation
  2. Aug 8, 2025CVE publishedPublication date reported by the CVE source.
  3. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=7.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

RARLAB · WinRARversion=0 <=7.12

Published CVSS scores

8.4ESETCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-35Path Traversal
CAPEC-549Local Execution of Code
T1204.002User Execution: Malicious File
T1547.001Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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