CVE-2025-11338

D-Link DI-7100G C1 jhttpd login.cgi sub_4C0990 buffer overflow

Published Oct 6, 2025 CVSS 4.0 · 8.7 High EPSS 1.0% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-32550 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.
History
Type Values Removed Values Added
First Time appeared Dlink
Dlink di-7100g C1
Dlink di-7100g C1 Firmware
CPEs cpe:2.3:h:dlink:di-7100g_c1:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-7100g_c1_firmware:2025-09-28:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink di-7100g C1
Dlink di-7100g C1 Firmware
Type Values Removed Values Added
First Time appeared D-link
D-link di-7100g C1
Vendors & Products D-link
D-link di-7100g C1
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title D-Link DI-7100G C1 jhttpd login.cgi sub_4C0990 buffer overflow
Weaknesses CWE-119
CWE-120
References
Metrics cvssV2_0

{'score': 9, 'vector': 'AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 8.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 8.8, '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'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Oct 6, 2025, 5:16 PM
Reserved
Oct 5, 2025, 10:09 PM
Status
Analyzed
Published
Oct 6, 2025, 4:15 PM
Modified
Oct 9, 2026, 10:10 AM