How to fix or mitigate CVE-2025-9409?

Within 30 days: Identify affected systems running lostvip-com ruoyi-go and apply vendor patches as part of regular patch cycle. Review file handling controls.

CVE-2025-9409

Q: What is the CVSS score of CVE-2025-9409?

CVE-2025-9409 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

LOW

Path Traversal (CWE-22)

2025-08-25 cna@vuldb.com

Path Traversal

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

5.3 (MEDIUM) 2.1 (LOW)

Analysis Generated

Mar 28, 2026 - 19:08 vuln.today

CVE Published

Aug 25, 2025 - 16:15 nvd

MEDIUM 5.3

DescriptionCVE.org

A security flaw has been discovered in lostvip-com ruoyi-go up to 2.1. Impacted is the function DownloadTmp/DownloadUpload of the file modules/system/controller/CommonController.go. Performing manipulation of the argument fileName results in path traversal. It is possible to initiate the attack remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

A security flaw has been discovered in lostvip-com ruoyi-go up to 2.1. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. A security flaw has been discovered in lostvip-com ruoyi-go up to 2.1. Impacted is the function DownloadTmp/DownloadUpload of the file modules/system/controller/CommonController.go. Performing manipulation of the argument fileName results in path traversal. It is possible to initiate the attack remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way. Affected products include: Lostvip Ruoyi-Go. Version information: up to 2.1..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.