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Fencer Vulns
high 8.5

CVE-2026-9151 json

Command Injection Vulnerability in OpenVPN on Multiple TP-Link Archer Routers

published 2026-06-10 4 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-36078

cvss
8.5
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

An OS command injection vulnerability exists in the VPN module of TP-Link Archer AX12 v1, AX17 v1. AX18 v1, and AX1300 v1.6 routers. This vulnerability allows an adjacent, authenticated attacker to execute arbitrary commands on the device by importing a specially crafted VPN client configuration file. The issue stems from improper filtering of special characters.

Successful exploitation of this vulnerability may enable an attacker to gain full control of the affected device, potentially compromising configuration integrity, network security, and service availability.

Patch / fix

  • TP-Link Systems Inc. Archer AX12 V1 V1_1.5.0 Build 20260605
  • TP-Link Systems Inc. Archer AX18 v1 V1_1.5.0 Build 20260605
  • TP Link Systems Inc. Archer AX17 v1 V1_1.5.0 Build 20260605
  • TP-Link Systems Inc. Archer AX1300 v1.6 V1_1.5.0 Build 20260605

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
5 mo ago

Exploit prediction

3.76% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.5 CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
CNA 4.0 8.5 CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • TP-Link Systems Inc. Archer AX12 V1
  • TP-Link Systems Inc. Archer AX18 v1
  • TP Link Systems Inc. Archer AX17 v1
  • TP-Link Systems Inc. Archer AX1300 v1.6

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.