RARLAB WinRAR Mark-Of-The-Web Bypass Vulnerability. This vulnerability allows remote attackers to bypass the Mark-Of-The-Web protection mechanism on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must perform a specific action on a malicious page. The specific flaw exists within the archive extraction functionality. A crafted archive entry can cause the creation of an arbitrary file without the Mark-Of-The-Web. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current user. Was ZDI-CAN-23156.
Conclusion & alert: CVE-2024-30370 is rated Low Risk (39.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.15%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.49% | 1.15% | +0.66% |
| 2 | 2025-11-20 | 0.73% | 0.49% | -0.24% |
| 3 | 2025-11-18 | — | 0.73% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 3.0 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| URL | Tags |
|---|---|
| https://www.rarlab.com/rarnew.htm#27.%20Busgs%20fixed | Release Notes |
| https://www.zerodayinitiative.com/advisories/ZDI-24-357/ | Third Party Advisory VDB Entry |