CVE-2026-30818: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in TP-Link Systems Inc. AX53 v1.0
CVE-2026-30818 is an OS command injection vulnerability in the dnsmasq module of TP-Link Archer AX53 v1. 0 firmware versions before 1. 7. 1 Build 20260213. It allows an authenticated adjacent attacker to execute arbitrary code by processing a specially crafted configuration file due to insufficient input validation. Exploitation can lead to modification of device configuration, access to sensitive information, or further system compromise. The vulnerability has a high severity with a CVSS 4. 0 score of 8. 5. No official patch or remediation guidance is currently confirmed from the vendor.
AI Analysis
Technical Summary
This vulnerability involves improper neutralization of special elements used in OS commands (CWE-78) within the dnsmasq module of TP-Link Archer AX53 v1.0. An attacker with authentication and adjacent network access can exploit insufficient input validation when the device processes a crafted configuration file, resulting in arbitrary code execution. The affected firmware versions are those before 1.7.1 Build 20260213. The CVSS 4.0 vector indicates low attack complexity, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated adjacent attacker to execute arbitrary OS commands on the device. This can lead to unauthorized modification of device settings, disclosure of sensitive information, and potential full compromise of the device's system integrity. The high CVSS score reflects significant risk to affected devices.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the device management interface to trusted networks and authenticated users only. Monitor for updates from TP-Link regarding firmware updates addressing this vulnerability.
CVE-2026-30818: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in TP-Link Systems Inc. AX53 v1.0
Description
CVE-2026-30818 is an OS command injection vulnerability in the dnsmasq module of TP-Link Archer AX53 v1. 0 firmware versions before 1. 7. 1 Build 20260213. It allows an authenticated adjacent attacker to execute arbitrary code by processing a specially crafted configuration file due to insufficient input validation. Exploitation can lead to modification of device configuration, access to sensitive information, or further system compromise. The vulnerability has a high severity with a CVSS 4. 0 score of 8. 5. No official patch or remediation guidance is currently confirmed from the vendor.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper neutralization of special elements used in OS commands (CWE-78) within the dnsmasq module of TP-Link Archer AX53 v1.0. An attacker with authentication and adjacent network access can exploit insufficient input validation when the device processes a crafted configuration file, resulting in arbitrary code execution. The affected firmware versions are those before 1.7.1 Build 20260213. The CVSS 4.0 vector indicates low attack complexity, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated adjacent attacker to execute arbitrary OS commands on the device. This can lead to unauthorized modification of device settings, disclosure of sensitive information, and potential full compromise of the device's system integrity. The high CVSS score reflects significant risk to affected devices.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict access to the device management interface to trusted networks and authenticated users only. Monitor for updates from TP-Link regarding firmware updates addressing this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TPLink
- Date Reserved
- 2026-03-05T17:35:52.175Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d6b19c1cc7ad14daa7cc65
Added to database: 4/8/2026, 7:50:52 PM
Last enriched: 4/8/2026, 8:06:21 PM
Last updated: 4/8/2026, 8:56:37 PM
Views: 3
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