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TI-2026-07834 Aliases CVE-2026-8913GHSA-gx83-77h4-7838

Command Injection in Archer MR600 WireGuard Client Configuration

Priority MEDIUM 41CWE-78Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01073 65th percentileScored 2026-11-07
Fix Fixed Archer MR600 v5 (TP-Link Systems Inc.): EU_V5_1.7.0 0.9.1 260518 rel67803, JP_V5_1.2.0 0.9.1 260519 rel52362Archer MR600 v2 (TP-Link Systems Inc.): 1.12.0 Build 260826+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TP-LinkArcher MR600 v5before EU_V5_1.7.0 0.9.1 260518 rel67803; before JP_V5_1.2.0 0.9.1 260519 rel52362EU_V5_1.7.0 0.9.1 260518 rel67803, JP_V5_1.2.0 0.9.1 260519 rel52362Patch availableCNA
TP-LinkArcher MR600 v2before 1.12.0 Build 2608261.12.0 Build 260826Patch availableCNA
TP-LinkArcher MR600 v3before 1.4.0 Build 2608271.4.0 Build 260827Patch availableCNA
  • Archer MR600 v5 VendorTP-Link Affected before EU_V5_1.7.0 0.9.1 260518 rel67803; before JP_V5_1.2.0 0.9.1 260519 rel52362 Fixed in EU_V5_1.7.0 0.9.1 260518 rel67803, JP_V5_1.2.0 0.9.1 260519 rel52362 Patch available CNA
  • Archer MR600 v2 VendorTP-Link Affected before 1.12.0 Build 260826 Fixed in 1.12.0 Build 260826 Patch available CNA
  • Archer MR600 v3 VendorTP-Link Affected before 1.4.0 Build 260827 Fixed in 1.4.0 Build 260827 Patch available CNA

Remediation

  • Fix · CNA Archer MR600 v5 (TP-Link Systems Inc.) Fixed in EU_V5_1.7.0 0.9.1 260518 rel67803, JP_V5_1.2.0 0.9.1 260519 rel52362
  • Fix · CNA Archer MR600 v2 (TP-Link Systems Inc.) Fixed in 1.12.0 Build 260826
  • Fix · CNA Archer MR600 v3 (TP-Link Systems Inc.) Fixed in 1.4.0 Build 260827

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-8913
  2. 2026-10-03 Alias added: GHSA-gx83-77h4-7838
  3. 2026-11-03 Title updated · CNA
  4. 2026-11-03 Fix available: TP-Link Systems Inc./Archer MR600 [email protected] Build 260826, TP-Link Systems Inc./Archer MR600 [email protected] Build 260827 · CNA
  5. 2026-11-03 2 new references · CNA

References

Patch 4

Advisory 1

  • TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
  • TI-2023-01313 Command injection in TP-Link Archer AX21 KEVCVSS 3.1HIGH 8.8
  • TI-2020-14907 TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the… KEVCVSS 3.1HIGH 8.8
  • TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
  • TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
  • TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
See all 636 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences