Vulnerability · Published May 5, 2026 · Assigned by VulDB
CVE-2026-7851D-Link DI-8100 yyxz.asp sprintf stack-based overflow
High 7.2
In plain English
A high-severity stack 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 4.1% (higher than 91% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)4.1%top 9.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
Affected products (as reported)
Weakness: CWE-121, CWE-119 · 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
References
- VDB-361128 | D-Link DI-8100 yyxz.asp sprintf stack-based overflow vdb-entry, technical-description
- VDB-361128 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #807798 | D-Link DI-8100 16.07.26A1 Denial of Service third-party-advisory
- https://github.com/draw-ctf/report/blob/main/DI-8100/yyxz_dlink_asp_overflow.md exploit
- https://www.dlink.com/ product