CVE-2018-20250
KEV RANSOMWAREHIGH 7.8EPSS 96.0%
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.
- Affected
- Check Point Software Technologies Ltd. · WinRAR
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P - EPSS
- 96.00% chance of exploitation in the next 30 days, 100th percentile
- CISA KEV
- added 2022-02-15, used in ransomware campaigns
- Published
- 2019-02-05
- Updated
- 2026-08-13
Proof-of-concept exploits (25)
- http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Rem…
- blau72/CVE-2018-20250-WinRAR-ACE21★ · 2019-03-01
- https://research.checkpoint.com/extracting-code-execution-from-winrar/
- http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace
- AeolusTF/CVE-2018-202500★ · 2019-03-11
- H4xl0r/WinRar_ACE_exploit_CVE-2018-202500★ · 2019-03-26
- LamSonBinh/CVE-2018-202500★ · 2024-04-26
- QAX-A-Team/CVE-2018-2025026★ · 2019-02-22
- STP5940/CVE-2018-202502★ · 2019-02-28
- WyAtu/CVE-2018-20250493★ · 2019-08-05
- albovy/ransomwareMALW1★ · 2020-12-20
- arkangel-dev/CVE-2018-20250-WINRAR-ACE-GUI7★ · 2019-05-10
- blunden/UNACEV2.DLL-CVE-2018-202500★ · 2019-02-22
- easis/CVE-2018-20250-WinRAR-ACE21★ · 2019-03-01
- eastmountyxz/CVE-2018-20250-WinRAR1★ · 2020-05-19
- gnusec/soapffzblogposts_backup0★ · 2023-08-16
- likekabin/CVE-2018-202500★ · 2019-04-25
- likescam/CVE-2018-202500★ · 2019-04-25
- lxg5763/cve-2018-202500★ · 2020-05-13
- manulqwerty/Evil-WinRAR-Gen122★ · 2019-07-26
- nmweizi/CVE-2018-20250-poc-winrar0★ · 2019-02-22
- tannlh/CVE-2018-202500★ · 2023-12-26
- tzwlhack/CVE-2018-202500★ · 2022-03-25
- zeronohacker/CVE-2018-202500★ · 2021-08-03
- joydragon/Detect-CVE-2018-202500★ · 2019-03-19
Metasploit modules (1)
ExploitDB entries (2)
Security advisories
- http://www.securityfocus.com/bid/106948
- https://research.checkpoint.com/extracting-code-execution-from-winrar
- https://www.win-rar.com/whatsnew.html