CVE-2025-7908: D-Link DI-8100 jhttpd ddns.asp sprintf stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-07-20 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in D-Link DI-8100 1.0. It has been declared as critical. Affected by this vulnerability is the function sprintf of the file /ddns.asp?opt=add of the component jhttpd. The manipulation of the argument mx leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Affected products

D-Link DI-8100: all versions

References

https://github.com/buobo/bo-s-CVE/blob/main/DI-8100/wp.md
https://vuldb.com/?ctiid.317023
https://vuldb.com/?id.317023
https://vuldb.com/?submit.618582
https://www.dlink.com/
https://github.com/buobo/bo-s-CVE/blob/main/DI-8100/wp.md

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