CVE-2018-20250

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.960 · 100 %ileexploit · weaponizedEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 22 exploits · weaponized

Likely / severe?

96.0% (100th) EPSS

CVSS 6.8 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2022-02-15remediate by 2022-08-15

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-26

WinRAR Absolute Path Traversal Vulnerability

In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when crafting the filename field of the ACE format (in UNACEV2.dll). When the filename field is manipulated with specific patterns, the destination (extraction) folder is ignored, thus treating the filename as an absolute path.

cvss

Technical severity, 0–10. One row per scoring source.

9.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.6

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.19.6criticalAV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-20USCWE-36US

exploits (22)

Public proof-of-concept and weaponised exploit code.

exploit/windows/fileformat/winrar_aceRARLAB WinRAR ACE Format Input Validation Remote Code Executionweaponized · metasploit
EDB-46552WinRAR 5.61 - Path Traversalfunctional · exploit_db
EDB-46756RARLAB WinRAR 5.61 - ACE Format Input Validation Remote Code Execution (Metasploit)functional · exploit_db
AeolusTF/CVE-2018-20250AeolusTF/CVE-2018-20250PoC · poc_in_github
Ektoplasma/ezwinrarPython tool exploiting CVE-2018-20250 found by CheckPoint folksPoC · poc_in_github
H4xl0r/WinRar_ACE_exploit_CVE-2018-20250This program is an script developed in Python which exploit the ACE vulnerability on WinRar - Vulnerability CVE-2018-20250PoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

Check Point Software Technologies Ltd. WinRAR≤ All versions prior and including 5.61enisa_euvdEU
WinRAR GmbH WinRAR≤ 5.70 Beta 1fstec_bduRU
rarlab winrar≤ 5.61nvdUScpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2019-02-05modified 2026-08-14

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Related entries.

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+12508 more

references (23)

External citations — patches, advisories, analysis.

scry

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