Overview
RARLAB WinRAR contains an unspecified vulnerability that allows an attacker to execute code when a user attempts to view a benign file within a ZIP archive.
http://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=232&cHash=c5bf79590657e32554c6683296a8e8aa; https://nvd.nist.gov/vuln/detail/CVE-2023-38831
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2023-38831 |
| Vendor / Product | RARLAB — WinRAR |
| NVD Published | 2023-08-23 |
| NVD Last Modified | 2025-10-31 |
| CVSS 3.1 Score | 7.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Severity | HIGH |
| CWE | CWE-345 |
| CISA KEV Added | 2023-08-24 |
| CISA KEV Deadline | 2023-09-14 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2023-09-14.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2023-08-24 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2023-09-14 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2023-38831 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |