CVE-2018-20250
In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-20250- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-36, CWE-22
- Updated
- 2026-11-02
CVE List
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.
- Record
CVE-2018-20250- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-36
- Updated
- 2026-11-02
EUVDEUVD-2018-12813
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.
- Record
EUVD-2018-12813- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-7v9q-j964-43qc
In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when...
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.
- Record
GHSA-7v9q-j964-43qc- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-22, CWE-36
- Updated
- 2026-11-02
CISA KEV No score
WinRAR Absolute Path Traversal Vulnerability
WinRAR Absolute Path Traversal vulnerability leads to Remote Code Execution
- Record
CVE-2018-20250- Weakness
- CWE-36
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | RARLAB WinRAR ACE Format Input Validation Remote Code Execution | 2019-02-05 |
| Exploit-DB | WinRAR 5.61 - Path Traversal | 2019-02-22 |
| PoC in GitHub | QAX-A-Team/CVE-2018-20250 | 2019-02-22 |
| PoC in GitHub | WyAtu/CVE-2018-20250 | 2019-02-22 |
| PoC in GitHub | blunden/UNACEV2.DLL-CVE-2018-20250 | 2019-02-22 |
| PoC in GitHub | nmweizi/CVE-2018-20250-poc-winrar | 2019-02-22 |
| PoC in GitHub | easis/CVE-2018-20250-WinRAR-ACE | 2019-02-23 |
| PoC in GitHub | STP5940/CVE-2018-20250 | 2019-02-28 |
| PoC in GitHub | technicaldada/hack-winrar | 2019-03-04 |
| PoC in GitHub | Ektoplasma/ezwinrar | 2019-03-05 |
Show 12 moreShow less
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | arkangel-dev/CVE-2018-20250-WINRAR-ACE-GUI | 2019-03-08 |
| PoC in GitHub | AeolusTF/CVE-2018-20250 | 2019-03-11 |
| PoC in GitHub | joydragon/Detect-CVE-2018-20250 | 2019-03-19 |
| Exploit-DB | RARLAB WinRAR 5.61 - ACE Format Input Validation Remote Code Execution (Metasploit) | 2019-04-25 |
| PoC in GitHub | likekabin/CVE-2018-20250 | 2019-04-25 |
| PoC in GitHub | H4xl0r/WinRar_ACE_exploit_CVE-2018-20250 | 2019-05-16 |
| PoC in GitHub | eastmountyxz/CVE-2018-20250-WinRAR | 2020-02-17 |
| PoC in GitHub | lxg5763/cve-2018-20250 | 2020-05-13 |
| PoC in GitHub | zeronohacker/CVE-2018-20250 | 2021-08-02 |
| PoC in GitHub | tzwlhack/CVE-2018-20250 | 2022-03-25 |
| PoC in GitHub | tannlh/CVE-2018-20250 | 2023-12-26 |
| PoC in GitHub | LamSonBinh/CVE-2018-20250 | 2024-04-26 |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation, exploits | ||
| first indexed | CVE List, EUVD, Exploit-DB, GitHub Advisories, CISA KEV, Metasploit, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-20250 is a high vulnerability (CVSS 7.8) in Check Point Software Technologies Ltd. Winrar, published February 5, 2019. CISA lists it as known to be exploited, since February 15, 2022. EUVD reports exploitation since February 15, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 96.0%, the 99th percentile. No source names a fixed version.