8.8 CVE-2025-8088
Enriched by CISA CISA Kev Catalog Exploit
A path traversal vulnerability affecting the Windows version of WinRAR allows the attackers to execute arbitrary code by crafting malicious archive files. This vulnerability was exploited in the wild and was discovered by Anton Cherepanov, Peter Košinár, and Peter StrýÄek
from ESET.
https://nvd.nist.gov/vuln/detail/CVE-2025-8088
Categories
CWE-35 : Path Traversal: '.../...//'
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory. Automated static analysis, commonly referred to as Static Application Security Testing (SAST), can find some instances of this weakness by analyzing source code (or binary/compiled code) without having to execute it. Typically, this is done by building a model of data flow and control flow, then searching for potentially-vulnerable patterns that connect "sources" (origins of input) with "sinks" (destinations where the data interacts with external components, a lower layer such as the OS, etc.) Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked. chain: ".../...//" bypasses protection mechanism using regexp's that remove "../" resulting in collapse into an unsafe value "../" (CWE-182) and resultant path traversal. ".../....///" bypasses regexp's that remove "./" and "../"
References
134c704f-9b21-4f2e-91b3-4a467353bcc0
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-20... US Government Resource |
| https://www.welivesecurity.com/en/eset-research/update-winrar-tools-now-romco... Press/Media Coverage |
af854a3a-2127-422b-91ae-364da2661108
| https://arstechnica.com/security/2025/08/high-severity-winrar-0-day-exploited... Press/Media Coverage |
| https://support.dtsearch.com/faq/dts0245.htm Third Party Advisory |
| https://www.vicarius.io/vsociety/posts/cve-2025-8088-detect-winrar-zero-day Third Party Advisory |
| https://www.vicarius.io/vsociety/posts/cve-2025-8088-mitigate-winrar-zero-day... Mitigation Third Party Advisory |
security@eset.com
AFFECTED (from MITRE)
| Vendor | Product | Versions |
|---|---|---|
| win.rar GmbH | WinRAR |
|
| © 2022 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. | ||
CPE
| cpe | start | end |
|---|---|---|
| Configuration 1 | ||
| AND | ||
| cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:* | < 7.13 | |
| Running on/with | ||
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | ||
| Configuration 2 | ||
| AND | ||
| cpe:2.3:a:dtsearch:dtsearch:*:*:*:*:*:*:*:* | < 2023.01 | |
| Running on/with | ||
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | ||
REMEDIATION
EXPLOITS
Exploit-db.com
| id | description | date | |
|---|---|---|---|
| No known exploits | |||
POC Github
Other Nist (github, ...)
| Url |
|---|
| No known exploits |
CAPEC
Common Attack Pattern Enumerations and Classifications
| id | description | severity |
|---|---|---|
| No entry | ||
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