What is the CVSS score of CVE-2025-8088?

CVE-2025-8088 has a CVSS 4.0 base score of 8.4 (High). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. EPSS exploitation probability: 6.8%.

Is there a public PoC exploit available for CVE-2025-8088?

Yes, a public proof-of-concept exploit is available for CVE-2025-8088. Prioritise patching immediately. EPSS: 6.8%.

How to fix or mitigate CVE-2025-8088?

Within 24 hours: Identify all affected systems running the Windows and apply vendor patches immediately. Monitor vendor channels for patch availability.

Winrar CVE-2025-8088

HIGH

Path Traversal: '.../...//' (CWE-35)

2025-08-08 security@eset.com

RCE Path Traversal Microsoft Winrar Suse Dtsearch Eset Rarlab

8.4

CVSS 4.0 · Vendor: eset

View

Vulnerability Assessment

Weakness	CWE CWE-35 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V5 - File Handling Path traversal prevention
Impact	High risk (CVSS 8.4). WinRAR's 500M+ user base makes any code execution vulnerability extremely impactful. Exploited in targeted attacks detected by ESET.
Exploit ScenarioDerived	A targeted email delivers a crafted archive. When extracted with WinRAR, a malicious executable is placed in the Startup folder or another auto-execution location, providing persistent access.

Act Now Prioritize within 24-48h. Why: In CISA KEV with patch available.

Exploited in the wild (CISA KEV) Patch available 6.8% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

WinRAR for Windows contains a path traversal vulnerability allowing crafted archives to execute arbitrary code, discovered by ESET and exploited in the wild for targeted attacks.

Earlier versions of this analysis (1)

v1 Mar 28, 2026 - 19:05 CVSS 8.4

A path traversal in WinRAR's Windows version allows crafted archives to achieve arbitrary code execution when extracted. Discovered by ESET researchers as an actively exploited zero-day.

RemediationAI

Update WinRAR immediately. Monitor for suspicious files in startup locations after archive extraction.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The CWE-35 path traversal in WinRAR's archive extraction allows crafted archives to place files outside the intended extraction directory, including in executable locations.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (eset) PRIMARY 8.4 HIGH

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SUSE HIGH

Primary rating from Vendor (eset).

CVSS VectorVendor: eset

Attack Vector

Local

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

Active

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

High

Vulnerable system: Availability

High

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

Added to CISA KEV

Oct 30, 2025 - 15:50 cisa

CISA KEV

CVE Published

Aug 08, 2025 - 12:15 nvd

HIGH 8.4

DescriptionCVE.org

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 Strýček from ESET.

Executive ViewAI

Why It Matters

Organizations using the Windows face notable risk from CVE-2025-8088 rated CVSS 8.4. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems. This vulnerability is actively exploited in the wild (KEV-listed) and requires immediate remediation. Immediate patching is required per CISA KEV mandate.

Business Impact: Severe

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

Threat Score

4.9/10

Composite threat intelligence

EPSS Score

6.8%

Top 9% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

CISA KEV

EPSS Vendor

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV Yes

Public POC Yes

EPSS 6.8%

Patch available Yes

Active threat Yes

Deciding rule

In CISA KEV with patch available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Active

System Exposure· derived

Small

Automatable· derived

Human Impact

Very High

Priority Score

119

Low Medium High Critical

KEV: +50

EPSS: +7

CVSS: +42

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Path Traversal HIGH

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)CVE.org

cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:*

cpe:2.3:a:dtsearch:dtsearch:*:*:*:*:*:*:*:*

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Same weakness CWE-35 – Path Traversal: '.../...//'

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CVE-2026-59115 CRITICAL

9.9

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CVE-2024-45190 MEDIUM POC

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CVE-2025-42937 CRITICAL

9.8

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CVE-2021-44228 CRITICAL POC

10.0

CVE-2017-7269 CRITICAL POC

9.8

CVE-2022-47966 CRITICAL POC

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CVE-2012-4681 CRITICAL POC

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CVE-2023-3519 CRITICAL POC

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CVE-2015-5119 CRITICAL POC

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CVE-2016-4117 CRITICAL POC

9.8

CVE-2015-3113 CRITICAL POC

9.8

Vendor StatusVendor

SUSE

Severity: Important

Product	Status
openSUSE Tumbleweed	Fixed

References

Advisories & patches

ADVISORY https://vuldb.com/vuln/319247 REF https://arstechnica.com/security/2025/08/high-severity-winrar-0-day-exploited-for-weeks-by-2-groups/ REF https://support.dtsearch.com/faq/dts0245.htm REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-8088 REF https://www.vicarius.io/vsociety/posts/cve-2025-8088-detect-winrar-zero-day REF https://www.vicarius.io/vsociety/posts/cve-2025-8088-mitigate-winrar-zero-day-using-srp-and-ifeo REF https://www.welivesecurity.com/en/eset-research/update-winrar-tools-now-romcom-and-others-exploiting-zero-day-vulnerability/#the-discovery-of-cve-2025-8088 REF https://www.win-rar.com/singlenewsview.html?&L=0&tx_ttnews%5Btt_news%5D=283&cHash=a64b4a8f662d3639dec8d65f47bc93c5

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