RARLAB WinRAR Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of RARLAB WinRAR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of file paths within archive files. A crafted file path can cause the process to traverse to unintended directories. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-27198.
Conclusion & alert: CVE-2025-6218 is rated Critical Active Threat (96.1/100): CVSS High severity, with high exploitation likelihood (EPSS 81.49%, 100th percentile). Core evidence: CISA KEV confirms active exploitation (added 2025-12-09) affecting RARLAB / WinRAR. a weakness (CWE-22) Unauthenticated remote administrative access may be possible. EPSS rose +75.80% over the last day, indicating growing attacker interest. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
: RARLAB WinRAR Path Traversal Vulnerability · CISA KEV detail
: 2025-12-09
: 2025-12-30
: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 5.69% | 81.49% | +75.80% |
| 2 | 2026-06-07 | 6.55% | 5.69% | -0.86% |
| 3 | 2026-06-05 | — | 6.55% | — |
Full EPSS history (45 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 3.0 | HIGH |
|
1.8 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2025-6218 unimportant priority: Debian including 1 source packages (rar), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2025-6218 |
| URL | Tags |
|---|---|
| https://www.win-rar.com/singlenewsview.html?&tx_ttnews%5Btt_news%5D=276&cHash=388885bd3908a40726f535c026f94eb6 | Release Notes |
| https://www.zerodayinitiative.com/advisories/ZDI-25-409/ | Third Party Advisory VDB Entry |
| https://foresiet.com/blog/apt-c-08-winrar-directory-traversal-exploit/ | Exploit Third Party Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-6218 | US Government Resource |
| https://www.secpod.com/blog/archive-terror-dissecting-the-winrar-cve-2025-6218-exploit-apt-c-08s-stealth-move/ | Exploit Third Party Advisory |