Vulnerability · Published Sep 15, 2026 · Assigned by VulDB
CVE-2026-91003D-Link DI-8300 CGI Service rzgl.asp rzgl_asp stack-based overflow
Critical 9.1
In plain English
A critical-severity stack buffer overflow in DI-8300 from D-Link. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)1.0%top 37.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in D-Link DI-8300 16.07. The affected element is the function rzgl_asp of the file /rzgl.asp of the component CGI Service. This manipulation of the argument redirct_url causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.
Affected products (as reported)
Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-403586 | D-Link DI-8300 CGI Service rzgl.asp rzgl_asp stack-based overflow vdb-entry, technical-description
- VDB-403586 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-91003 | CVE Analysis and Report third-party-advisory
- Submit #932002 | D-Link DI-8300 16.07 Buffer Overflow third-party-advisory
- https://github.com/Vivi-Xray/Xray-s-cve-/blob/main/rzgl/rzgl_asp.md related
- https://github.com/Vivi-Xray/Xray-s-cve-/blob/main/rzgl/rzgl_asp.py exploit
- https://www.dlink.com/ product