CVE-2025-6334: D-Link DIR-867 Query String strncpy stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-06-20 · updated 2026-06-17
Weakness: CWE-119

Description

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.

Affected products

D-Link DIR-867: 1.0

References

https://github.com/Thir0th/Thir0th-CVE/blob/main/DIR-867%20AC1750.md
https://vuldb.com/?ctiid.313330
https://vuldb.com/?id.313330
https://vuldb.com/?submit.596579
https://www.dlink.com/

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