CVE-2026-7857

D-Link DI-8100 CGI user_group.asp sprintf buffer overflow

Published May 5, 2026 CVSS 4.0 · 8.6 High EPSS 4.2% KEV · Not listed
Description
A vulnerability has been found in D-Link DI-8100 16.07.26A1. This vulnerability affects the function sprintf of the file /user_group.asp of the component CGI Handler. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Dlink
Dlink di-8100
Dlink di-8100 Firmware
CPEs cpe:2.3:h:dlink:di-8100:-:*:*:*:*:*:*:*
cpe:2.3:o:dlink:di-8100_firmware:16.07.26a1:*:*:*:*:*:*:*
Vendors & Products Dlink
Dlink di-8100
Dlink di-8100 Firmware
Type Values Removed Values Added
First Time appeared D-link
D-link di-8100
Vendors & Products D-link
D-link di-8100
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A vulnerability has been found in D-Link DI-8100 16.07.26A1. This vulnerability affects the function sprintf of the file /user_group.asp of the component CGI Handler. The manipulation leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.
Title D-Link DI-8100 CGI user_group.asp sprintf buffer overflow
Weaknesses CWE-119
CWE-120
References
Metrics cvssV2_0

{'score': 8.3, 'vector': 'AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.2, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
May 5, 2026, 7:39 PM
Reserved
May 5, 2026, 11:41 AM
Status
Analyzed
Published
May 5, 2026, 8:16 PM
Modified
Jul 24, 2026, 8:10 AM