Vulnerability in Linux Kernel

CVE-2025-6504

In HDP Server versions below 4.6.2.2978 on Linux, unauthorized access could occur via IP spoofing using the X-Forwarded-For header.  Since XFF is a client-controlled header, it could be spoofed, allowing unauthorized access if the spoofed IP matched a whitelisted range. This vulnerability could be exploited to bypass IP restrictions, though valid user credentials would still be required for resource access.

EPSS: 0.002 (6.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-6504?
CVE-2025-6504 is a high-severity vulnerability in Linux Kernel, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.4/10. Published 2025-07-29.
How severe is CVE-2025-6504?
High severity. CVSS v3 base score is 8.4 out of 10.