CVE-2025-6776

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.64% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 48.1% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-06-27 20:00Z1 YR AGO

Last updated

2025-06-27 20:11Z1 YR AGO

Reserved

2025-06-27

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

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

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.1

Document digest

7030ec39721479db37263761ab360404a1950ebadb8f6be9f92a037951674f4d

• vuldb.comVDB-314092 | xiaoyunjie openvpn-cms-flask File Upload controller.py upload path traversalhttps://vuldb.com/?id.314092vdb-entrytechnical-description
• vuldb.comVDB-314092 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/?ctiid.314092signaturepermissions-required
• vuldb.comSubmit #602374 | xiaoyunjie openvpn-cms-flask 1.2.7 Arbitrary File Writehttps://vuldb.com/?submit.602374third-party-advisory
• github.comhttps://github.com/xiaoyunjie/openvpn-cms-flask/issues/23exploitissue-tracking
• github.comhttps://github.com/xiaoyunjie/openvpn-cms-flask/commit/e23559b98c8ea2957f09978c29f4e512ba789eb6patch
• github.comhttps://github.com/xiaoyunjie/openvpn-cms-flask/releases/tag/v1.2.8patch