CVE-2025-6158: D-Link DIR-665 HTTP POST Request sub_AC78 stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-06-17 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability classified as critical has been found in D-Link DIR-665 1.00. This affects the function sub_AC78 of the component HTTP POST Request Handler. The manipulation leads to stack-based buffer overflow. It is possible to initiate the attack 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-665: 1.00

References

https://github.com/xiaobor123/vul-finds/tree/main/vul-find-dir665-dlink
https://github.com/xiaobor123/vul-finds/tree/main/vul-find-dir665-dlink#poc
https://vuldb.com/?ctiid.312633
https://vuldb.com/?id.312633
https://vuldb.com/?submit.593161
https://www.dlink.com/

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