NVD - CVE-2018-20250 (original) (raw)
CVE-2018-20250 Detail
Description
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.
Metrics
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:
NIST: NVD
N/A
NVD assessment not yet provided.
CVSS 3.x Severity and Vector Strings:
NIST: NVD
Base Score: 7.8 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
ADP: CISA-ADP
Base Score: 7.8 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NIST: NVD
Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html | CVE, Check Point Software Technologies Ltd. | Exploit Third Party Advisory VDB Entry |
| http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace | CVE, Check Point Software Technologies Ltd. | Third Party Advisory |
| http://www.securityfocus.com/bid/106948 | CVE, Check Point Software Technologies Ltd. | Broken Link Third Party Advisory VDB Entry |
| https://github.com/blau72/CVE-2018-20250-WinRAR-ACE | CVE, Check Point Software Technologies Ltd. | Exploit Third Party Advisory |
| https://research.checkpoint.com/extracting-code-execution-from-winrar/ | CVE, Check Point Software Technologies Ltd. | Exploit Press/Media Coverage Third Party Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-20250 | CISA-ADP | US Government Resource |
| https://www.exploit-db.com/exploits/46552/ | CVE, Check Point Software Technologies Ltd. | Exploit Third Party Advisory VDB Entry |
| https://www.exploit-db.com/exploits/46756/ | CVE, Check Point Software Technologies Ltd. | Exploit Third Party Advisory VDB Entry |
| https://www.win-rar.com/whatsnew.html | CVE, Check Point Software Technologies Ltd. | Release Notes |
This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.
| Vulnerability Name | Date Added | Due Date | Required Action |
|---|---|---|---|
| WinRAR Absolute Path Traversal Vulnerability | 02/15/2022 | 08/15/2022 | Apply updates per vendor instructions. |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | NIST |
| CWE-36 | Absolute Path Traversal | Check Point Software Technologies Ltd. |
Known Affected Software Configurations Switch to CPE 2.2
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Change History
22 change records found show changes
Modified Analysis by NIST 10/31/2025 6:07:10 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference Type | CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field\_cve=CVE-2018-20250 Types: US Government Resource |
CVE Modified by CISA-ADP 10/21/2025 8:16:22 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field\_cve=CVE-2018-20250 |
CVE Modified by CISA-ADP 10/21/2025 4:17:13 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Removed | Reference | https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field\_cve=CVE-2018-20250 |
CVE Modified by CISA-ADP 10/21/2025 3:17:30 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field\_cve=CVE-2018-20250 |
Modified Analysis by NIST 3/13/2025 1:07:28 PM
| Action | Type | Old Value | New Value |
|---|
CVE Modified by CISA-ADP 2/07/2025 9:15:44 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CVSS V3.1 | AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Modified Analysis by NIST 1/27/2025 4:54:18 PM
| Action | Type | Old Value | New Value |
|---|
CVE Modified by CVE 11/20/2024 11:01:10 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html | |
| Added | Reference | http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar\_ace | |
| Added | Reference | http://www.securityfocus.com/bid/106948 | |
| Added | Reference | https://github.com/blau72/CVE-2018-20250-WinRAR-ACE | |
| Added | Reference | https://research.checkpoint.com/extracting-code-execution-from-winrar/ | |
| Added | Reference | https://www.exploit-db.com/exploits/46552/ | |
| Added | Reference | https://www.exploit-db.com/exploits/46756/ | |
| Added | Reference | https://www.win-rar.com/whatsnew.html |
Modified Analysis by NIST 7/24/2024 12:05:24 PM
CVE Modified by Check Point Software Technologies Ltd. 5/14/2024 1:14:06 AM
| Action | Type | Old Value | New Value |
|---|
CVE Modified by Check Point Software Technologies Ltd. 10/09/2019 7:39:36 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CWE | Check Point Software Technologies Ltd. CWE-36 |
CWE Remap by NIST 10/02/2019 8:03:26 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Changed | CWE | CWE-20 CWE-22 | CWE-22 |
Modified Analysis by NIST 4/26/2019 12:03:37 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Changed | Reference Type | http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html No Types Assigned | http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html Third Party Advisory, VDB Entry |
| Changed | Reference Type | http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar\_ace No Types Assigned | http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar\_ace Third Party Advisory |
| Changed | Reference Type | https://www.exploit-db.com/exploits/46552/ Exploit, Third Party Advisory | https://www.exploit-db.com/exploits/46552/ Exploit, Third Party Advisory, VDB Entry |
| Changed | Reference Type | https://www.exploit-db.com/exploits/46756/ No Types Assigned | https://www.exploit-db.com/exploits/46756/ Exploit, Third Party Advisory, VDB Entry |
CVE Modified by Check Point Software Technologies Ltd. 4/25/2019 3:29:00 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | https://www.exploit-db.com/exploits/46756/ [No Types Assigned] |
CVE Modified by Check Point Software Technologies Ltd. 4/25/2019 5:29:00 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar\_ace [No Types Assigned] |
CVE Modified by Check Point Software Technologies Ltd. 4/24/2019 12:29:00 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html [No Types Assigned] |
Modified Analysis by NIST 3/21/2019 1:51:37 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Changed | Reference Type | http://www.securityfocus.com/bid/106948 Third Party Advisory | http://www.securityfocus.com/bid/106948 Third Party Advisory, VDB Entry |
| Changed | Reference Type | https://github.com/blau72/CVE-2018-20250-WinRAR-ACE No Types Assigned | https://github.com/blau72/CVE-2018-20250-WinRAR-ACE Exploit, Third Party Advisory |
| Changed | Reference Type | https://research.checkpoint.com/extracting-code-execution-from-winrar/ No Types Assigned | https://research.checkpoint.com/extracting-code-execution-from-winrar/ Exploit, Third Party Advisory |
| Changed | Reference Type | https://www.exploit-db.com/exploits/46552/ No Types Assigned | https://www.exploit-db.com/exploits/46552/ Exploit, Third Party Advisory |
CVE Modified by Check Point Software Technologies Ltd. 3/21/2019 12:00:35 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | https://www.exploit-db.com/exploits/46552/ [No Types Assigned] |
CVE Modified by Check Point Software Technologies Ltd. 3/15/2019 4:29:00 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | https://github.com/blau72/CVE-2018-20250-WinRAR-ACE [No Types Assigned] |
CVE Modified by Check Point Software Technologies Ltd. 3/14/2019 1:29:00 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Changed | Description | By crafting the filename field of the ACE format, the destination folder (extraction folder) is ignored, and the relative path in the filename field becomes an absolute Path. This logical bug, allows the extraction of a file to an arbitrary location which is effectively code execution. | 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. |
| Added | Reference | https://research.checkpoint.com/extracting-code-execution-from-winrar/ [No Types Assigned] |
Initial Analysis by NIST 2/22/2019 1:08:20 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CVSS V3 | AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | |
| Added | CVSS V2 | (AV:N/AC:M/Au:N/C:P/I:P/A:P) | |
| Added | CWE | CWE-20 | |
| Added | CPE Configuration | OR *cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:* versions up to (including) 5.61 | |
| Changed | Reference Type | http://www.securityfocus.com/bid/106948 No Types Assigned | http://www.securityfocus.com/bid/106948 Third Party Advisory |
| Changed | Reference Type | https://www.win-rar.com/whatsnew.html No Types Assigned | https://www.win-rar.com/whatsnew.html Vendor Advisory |
| Added | CVSS V2 Metadata | Victim must voluntarily interact with attack mechanism |
CVE Modified by Check Point Software Technologies Ltd. 2/09/2019 6:29:08 AM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | Reference | http://www.securityfocus.com/bid/106948 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2018-20250
NVD Published Date:
02/05/2019
NVD Last Modified:
10/31/2025
Source:
Check Point Software Technologies Ltd.