CVE-2026-9151
CVE-2026-9151 is a high-severity vulnerability with a CVSS 4.0 base score of 8.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 4.0 base score 8.5)
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-36078
- Weakness: CWE-78
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-9151?
- 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.
- How severe is CVE-2026-9151?
- CVE-2026-9151 has a CVSS 4.0 base score of 8.5, rated high severity.
- Is CVE-2026-9151 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-9151?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-9151 have an EU (EUVD) identifier?
- Yes. CVE-2026-9151 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36078.
- When was CVE-2026-9151 published?
- CVE-2026-9151 was published on 2026-06-10 and last updated on 2026-06-17.
References
- https://www.tp-link.com/en/support/download/archer-ax12/#Firmware
- https://www.tp-link.com/en/support/download/archer-ax17/#Firmware
- https://www.tp-link.com/en/support/download/archer-ax18/#Firmware
- https://www.tp-link.com/us/support/download/archer-ax1300/#Firmware
- https://www.tp-link.com/us/support/faq/5125/
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