CVE-2026-7857

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.

CVSS v4.0

7.3 HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

8.3 HIGHAV:N/AC:L/Au:M/C:C/I:C/A:C

EPSS

4.16% chance of exploitation in the next 30 days, 90th percentile

Published

2026-05-05

Proof-of-concept exploits (1)

• draw-ctf/report/blob/main/DI-8100/user_group_asp_overflow.md

References

• CVE Record
• NVD entry

Related

• CVE-2026-7247
• CVE-2026-7248
• CVE-2026-7851
• CVE-2026-7853
• CVE-2026-7854
• CVE-2026-7855