CVE-2026-8913

Administrative command execution via WireGuard configuration input

Published Jun 8, 2026 · Updated Jun 8, 2026

OS command injection in Archer MR600 v5 firmware allows remote authenticated users to execute arbitrary commands through the web interface. The WireGuard client configuration fails to neutralize command elements in user-controlled web input when it applies configuration changes. Administrative privileges and adjacent-network access are required; execution permits reading or altering data and interrupting device operation.

CVSS severity8.5
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Archer MR600 v5 firmware allows remote authenticated users to execute arbitrary commands through the web interface. The WireGuard client configuration fails to neutralize command elements in user-controlled web input when it applies configuration changes. Administrative privileges and adjacent-network access are required; execution permits reading or altering data and interrupting device operation.

The record

CVE
CVE-2026-8913
Published
Jun 8, 2026
Updated
Jun 8, 2026
Vendor
TP-Link Systems Inc.
Product
Archer MR600
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Jun 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <EU_V5_1.7.0 0.9.1 260518 rel67803
  2. Affected versionversion=0 <JP_V5_1.2.0 0.9.1 260519 rel52362

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

TP-Link Systems Inc. · Archer MR600version=0 <EU_V5_1.7.0 0.9.1 260518 rel67803; version=0 <JP_V5_1.2.0 0.9.1 260519 rel52362

Published CVSS scores

8.5TP-Link Systems Inc.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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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