# Command Injection in Archer MR600 WireGuard Client Configuration

CVE record · `CVE-2026-8913`

- **Identifiers:** `CVE-2026-8913`
- **State:** Confirmed
- **Severity:** CVSS 8.5 High
- **Critical:** No
- **CNA:** TPLink
- **Weakness (CWE):** [CWE-78](https://cwe.mitre.org/data/definitions/78.html)
- **Tags:** [Command injection](https://agentprime.io/advisories/tag/command-injection.md)
- **Technologies:** [TP-Link Systems Inc. Archer MR600 v5](https://agentprime.io/advisories/technology/tp-link-systems-inc-archer-mr600-v5.md) · [TP-Link Systems Inc. Archer MR600 v2](https://agentprime.io/advisories/technology/tp-link-systems-inc-archer-mr600-v2.md) · [TP-Link Systems Inc. Archer MR600 v3](https://agentprime.io/advisories/technology/tp-link-systems-inc-archer-mr600-v3.md)
- **Published:** 8 Jun 2026
- **Updated:** 5 Nov 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: TPLink) at 8 Jun 2026, 17:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: TP-Link Systems Inc.. Product: Archer MR600 v5.
  - affected: `before EU_V5_1.7.0 0.9.1 260518 rel67803` (custom)
  - affected: `before JP_V5_1.2.0 0.9.1 260519 rel52362` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: Archer MR600 v2.
  - affected: `before 1.12.0 Build 260826` (custom)
  - Other versions: unaffected
- Vendor: TP-Link Systems Inc.. Product: Archer MR600 v3.
  - affected: `before 1.4.0 Build 260827` (custom)
  - Other versions: unaffected

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Archer MR600 v2 before 1.12.0 Build 260826, Archer MR600 v3 before 1.4.0 Build 260827, and Archer MR600 v5 before EU_V5_1.7.0 0.9.1 260518 rel67803 or JP_V5_1.2.0 0.9.1 260519 rel52362 contain a command injection flaw in the WireGuard client configuration. An attacker with administrative login to the web management interface can run arbitrary commands on the device when configuration changes are applied. Upgrade to the fixed firmware versions listed for your hardware version.

Written 14 Nov 2026.

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 8.5 High, CVSS 4.0: `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`, from CNA (TPLink)

- **CISA KEV:** Not listed.
- **EPSS:** 0.011, the 65th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 8 Jun 2026, 17:21 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-8913)
- 8 Jun 2026, 18:16 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-8913)

## Sources

- [CVE List: CVE-2026-8913](https://www.cve.org/CVERecord?id=CVE-2026-8913)
- [NVD: CVE-2026-8913](https://nvd.nist.gov/vuln/detail/CVE-2026-8913)

### References from the CNA

- <https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmware> (patch)
- <https://www.tp-link.com/jp/support/download/archer-mr600/v5/#Firmware> (patch)
- <https://www.tp-link.com/us/support/faq/5122/> (vendor-advisory)
- <https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware> (patch)
- <https://www.tp-link.com/en/support/download/archer-mr600/v3/#Firmware> (patch)

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-8913>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-8913/>. Everything for agents: <https://agentprime.io/llms.txt>.