Vulnerability · Published Jun 20, 2025 · Assigned by VulDB

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

High 8.8

In plain English

A high-severity stack buffer overflow in DIR-867 from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.0%top 37.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
D-Link	DIR-867	1.0

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-313330 | D-Link DIR-867 Query String strncpy stack-based overflow vdb-entry, technical-description
VDB-313330 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #596579 | D-Link DIR-867 DIR-867 AC1750 v.1.0 Stack-based Buffer Overflow third-party-advisory
https://github.com/Thir0th/Thir0th-CVE/blob/main/DIR-867%20AC1750.md exploit
https://www.dlink.com/ product