CVE-2018-20250 (GCVE-0-2018-20250)
Vulnerability from cvelistv5 – Published: 2019-02-05 20:00 – Updated: 2026-08-13 03:55Summary
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.
Severity
7.8 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2022-02-14 00:00 UTC
CWE
- CWE-36 - Absolute Path Traversal
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/blau72/CVE-2018-20250-WinRAR-ACE | x_refsource_MISC |
| https://research.checkpoint.com/extracting-code-e… | x_refsource_MISC |
| https://www.exploit-db.com/exploits/46552/ | exploitx_refsource_EXPLOIT-DB |
| http://www.securityfocus.com/bid/106948 | vdb-entryx_refsource_BID |
| https://www.win-rar.com/whatsnew.html | x_refsource_MISC |
| http://packetstormsecurity.com/files/152618/RARLA… | x_refsource_MISC |
| http://www.rapid7.com/db/modules/exploit/windows/… | x_refsource_MISC |
| https://www.exploit-db.com/exploits/46756/ | exploitx_refsource_EXPLOIT-DB |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Check Point Software Technologies Ltd. | WinRAR |
Affected:
All versions prior and including 5.61
|
guessed |
Date Public
2019-02-05 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7722a648-154b-4006-966c-45042d47b41c
Exploited: Yes
Timestamps
First Seen: 2022-02-15
Asserted: 2022-02-15
Scope
Notes: KEV entry: WinRAR Absolute Path Traversal Vulnerability | Affected: RARLAB / WinRAR | Description: WinRAR Absolute Path Traversal vulnerability leads to Remote Code Execution | Required action: Apply updates per vendor instructions. | Due date: 2022-08-15 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2018-20250
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-36 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | WinRAR |
| Due Date | 2022-08-15 |
| Date Added | 2022-02-15 |
| Vendorproject | RARLAB |
| Vulnerabilityname | WinRAR Absolute Path Traversal Vulnerability |
| Knownransomwarecampaignuse | Known |
References
Created: 2026-02-02 12:28 UTC
| Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e1a5d080-2380-4fba-8f0c-10710a75d925
Exploited: Yes
Timestamps
First Seen: 2022-02-15
Asserted: 2022-02-15
Scope
Notes: KEVIntel entry: In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when crafting the filename field of the ACE format (in... | Affected: Check Point Software Technologies Ltd. / WinRAR | CVSS: 7.8 (HIGH) | Used in malware: yes | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Confirmed Compromise
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when crafting the filename field of the ACE format (in... |
| Vendor | Check Point Software Technologies Ltd. |
| Product | WinRAR |
| Added Date | 2022-02-15T00:00:00.000Z |
| Cvss Score | 7.8 |
| Epss Score | None |
| Cvss Severity | HIGH |
| Epss Percentile | None |
| Used In Malware | yes |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 14:04 UTC
| Updated: 2026-07-10 06:14 UTC
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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