PatchTheCVECVE-2025-6334: A vulnerability has been found in D-Link DIR-867 1.0 and classified as critical
CVE-2025-6334 is a high-severity flaw (CVSS 8.8) affecting dir-867 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability has been found in D-Link DIR-867 1.0 and classified as critical. This vulnerability affects the function strncpy of the component Query String Handler. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-6334?
dir-867 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2025-6334 being exploited?
CVE-2025-6334 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-6334 affect?
CVE-2025-6334 affects dir-867 firmware. Severity is high (CVSS 8.8). A vulnerability has been found in D-Link DIR-867 1.0 and classified as critical. This vulnerability affects the function strncpy of the component Query String Handler. The manipulation leads to stack-based buffer overflow. The attack can be
How urgent is CVE-2025-6334?
Priority 46/100. High severity