Vulnerability · Published May 5, 2026 · Assigned by VulDB
CVE-2026-7853D-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow
Critical 9.8
In plain English
A critical-severity buffer overflow in DI-8100 from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.5%top 25.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A weakness has been identified in D-Link DI-8100 16.07.26A1. Affected is the function sprintf of the file /auto_reboot.asp of the component HTTP Handler. This manipulation of the argument enable/time causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-361130 | D-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow vdb-entry, technical-description
- VDB-361130 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #807837 | D-Link DI-8100 16.07.26A1 Denial of Service third-party-advisory
- https://github.com/draw-ctf/report/blob/main/DI-8100/auto_reboot_asp_overflow.md exploit
- https://www.dlink.com/ product