# CVE-2026-8913: Command Injection in Archer MR600 WireGuard Client Configuration

Status: published. Published: 2026-06-08. Updated: 2026-11-03.

A command Injection vulnerability exists in the WireGuard client configuration of Archer MR600 v2, v3, and v5 due to improper neutralization of user-controlled input within the web management interface. An authenticated attacker with administrative privileges may be able to execute arbitrary commands when applying configuration changes.Successful exploitation may result in a full compromise of confidentiality, integrity, and availability of the affected device.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: TPLink) — https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmware
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: TPLink) — https://www.tp-link.com/jp/support/download/archer-mr600/v5/#Firmware
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: TPLink) — https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: TPLink) — https://www.tp-link.com/en/support/download/archer-mr600/v3/#Firmware

## Affected products and versions

- TP-Link Systems Inc. / Archer MR600 v5: ≥ 0; < EU_V5_1.7.0 0.9.1 260518 rel67803 (affected, custom); ≥ 0; < JP_V5_1.2.0 0.9.1 260519 rel52362 (affected, custom). Source: CNA: TPLink
- TP-Link Systems Inc. / Archer MR600 v2: ≥ 0; < 1.12.0 Build 260826 (affected, custom). Source: CNA: TPLink
- TP-Link Systems Inc. / Archer MR600 v3: ≥ 0; < 1.4.0 Build 260827 (affected, custom). Source: CNA: TPLink

## Severity and prioritization

- CVSS 4.0: 8.5 (high); CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: TPLink

- CISA KEV: No listing in collected sources

- EPSS: 0.91% as of 2026-11-03; percentile 59.94%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-78

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmware (CNA: TPLink; patch)

- https://www.tp-link.com/jp/support/download/archer-mr600/v5/#Firmware (CNA: TPLink; patch)

- https://www.tp-link.com/us/support/faq/5122/ (CNA: TPLink; vendor-advisory)

- https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware (CNA: TPLink; patch)

- https://www.tp-link.com/en/support/download/archer-mr600/v3/#Firmware (CNA: TPLink; patch)

## Provenance

- CNA: TPLink: https://www.cve.org/CVERecord?id=CVE-2026-8913; retrieved 2026-11-03; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-8913; retrieved 2026-11-03; source updated Not reported

Revision: 32be70c2d8f8abd1fb1fb5cecd5c2755c7dfbd52b10530b1eb1e06bcbe6c41a9

Canonical: https://y2.dev/cve/CVE-2026-8913

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