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Description

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.

PUBLISHED Reserved 2026-05-20 | Published 2026-06-10 | Updated 2026-06-10 | Assigner TPLink




HIGH: 8.5CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

Problem types

CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')

Product status

Default status
unaffected

Any version before V1_1.5.0 Build 20260605
affected

Default status
unaffected

Any version before V1_1.5.0 Build 20260605
affected

Default status
unaffected

Any version before V1_1.5.0 Build 20260605
affected

Default status
unaffected

Any version before V1_1.5.0 Build 20260605
affected

Credits

Henri Nurmi finder

References

www.tp-link.com/en/support/download/archer-ax17/ patch

www.tp-link.com/en/support/download/archer-ax12/ patch

www.tp-link.com/en/support/download/archer-ax18/ patch

www.tp-link.com/us/support/download/archer-ax1300/ patch

www.tp-link.com/us/support/faq/5125/ vendor-advisory

cve.org (CVE-2026-9151)

nvd.nist.gov (CVE-2026-9151)

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