Vulnerability · Published Jun 1, 2026 · Assigned by VulDB

CVE-2026-10206D-Link DI-8400 dbsrv.asp stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in DI-8400 from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 56.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in D-Link DI-8400 up to 16.07.26A1. This affects an unknown function of the file /dbsrv.asp. Performing a manipulation of the argument str results in stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used. The initial researcher advisory mentions contradicting parameter names to be affected.

Affected products (as reported)

Vendor	Product	Versions
D-Link	DI-8400	16.07.26A1

Weakness: CWE-121, CWE-119 · 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

References

VDB-367486 | D-Link DI-8400 dbsrv.asp stack-based overflow vdb-entry, technical-description
VDB-367486 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-10206 | CVE Analysis and Report third-party-advisory
Submit #821716 | D-Link DI-8400 <=v16.07.26A1 Buffer Overflow third-party-advisory
https://github.com/666324/dlink-di8400-vuln/tree/main/dlink-di8400-vuln exploit
https://www.dlink.com/ product