CVE-2026-75616: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in TP-Link Systems Inc. Archer C20 v6
CVE-2026-75616 is an OS command injection vulnerability in the web management interface of TP-Link Archer C20 v6 firmware. It affects certain WAN-related configuration operations and requires authenticated administrator access. Exploitation allows execution of arbitrary system commands with elevated privileges, potentially leading to full device compromise and impacting confidentiality, integrity, and availability of the device and network traffic.
AI Analysis
Technical Summary
This vulnerability arises from improper neutralization of special elements used in OS commands (CWE-78) within the Archer C20 v6 firmware's web management interface. An authenticated administrator can exploit insufficient input validation during WAN-related configuration processing to execute arbitrary system commands with elevated privileges. This can compromise the device fully, affecting its confidentiality, integrity, and availability, as well as the network traffic passing through it. The CVSS 4.0 base score is 8.5, indicating high severity. No patch or official remediation information is currently available, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows an authenticated administrator to execute arbitrary commands on the device with elevated privileges, potentially leading to full compromise of the device. This impacts the confidentiality, integrity, and availability of the device and the network traffic it handles.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict administrative access to trusted personnel only and monitor for suspicious activity related to WAN configuration changes.
CVE-2026-75616: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in TP-Link Systems Inc. Archer C20 v6
Description
CVE-2026-75616 is an OS command injection vulnerability in the web management interface of TP-Link Archer C20 v6 firmware. It affects certain WAN-related configuration operations and requires authenticated administrator access. Exploitation allows execution of arbitrary system commands with elevated privileges, potentially leading to full device compromise and impacting confidentiality, integrity, and availability of the device and network traffic.
CVSS v4.0
Score 8.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper neutralization of special elements used in OS commands (CWE-78) within the Archer C20 v6 firmware's web management interface. An authenticated administrator can exploit insufficient input validation during WAN-related configuration processing to execute arbitrary system commands with elevated privileges. This can compromise the device fully, affecting its confidentiality, integrity, and availability, as well as the network traffic passing through it. The CVSS 4.0 base score is 8.5, indicating high severity. No patch or official remediation information is currently available, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows an authenticated administrator to execute arbitrary commands on the device with elevated privileges, potentially leading to full compromise of the device. This impacts the confidentiality, integrity, and availability of the device and the network traffic it handles.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict administrative access to trusted personnel only and monitor for suspicious activity related to WAN configuration changes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- TPLink
- Date Reserved
- 2026-08-17T23:56:24.056Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a861799acd9273b499c15aa
Added to database: 08/19/2026, 20:52:41 UTC
Last enriched: 08/19/2026, 21:07:12 UTC
Last updated: 08/19/2026, 21:13:12 UTC
Views: 6
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