CVE-2025-11338: D-Link DI-7100G C1 jhttpd login.cgi sub_4C0990 buffer overflow

Severity: critical (CVSS 9.8 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: 2025-10-06 · updated 2026-10-09
Weakness: CWE-119

Description

A flaw has been found in D-Link DI-7100G C1 up to 20250928. This vulnerability affects the function sub_4C0990 of the file /webchat/login.cgi of the component jhttpd. Executing manipulation of the argument openid can lead to buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.

Affected products

D-Link DI-7100G C1: 2025-09-28

References

https://vuldb.com/?ctiid.327221
https://vuldb.com/?id.327221
https://vuldb.com/?submit.664619
https://www.dlink.com/
https://www.yuque.com/jh0ng/vmpda6/kggo2ngrcphzvwml

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