CVE-2026-75616
TP-Link · published 2026-08-19
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by TPLink via the CVE Program.
An OS command injection vulnerability exists in the web management interface of Archer C20 v6 firmware when processing certain WAN-related configuration operations. An authenticated administrator may exploit insufficient input validation to execute arbitrary system commands, potentially resulting in full device compromise. Successful exploitation may allow arbitrary command execution with elevated privileges, compromising the confidentiality, integrity, and availability of the affected device and network traffic passing through it.
Status at the source
- NVD status: Analyzed
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | Archer C20 v6 | 0 – before EU_0.9.1 Build 260811: affected 0 – before US_0.9.1 Build 260812: affected 0 – before RU_0.9.1 Build 260812: affected |
Products named in NVD's CPE match criteria (1)
cpe:2.3:o:tp-link:archer_c20_firmware:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 4.0: 8.5 HIGH — as published by TPLink (Secondary)
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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 - CVSS 3.1: 6.8 MEDIUM — as published by NIST (Primary)
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: none · Automatable: no · Technical impact: total
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://www.tp-link.com/en/support/download/archer-c20/v6/#Firmware
- https://www.tp-link.com/en/support/faq/5252/
- https://www.tp-link.com/us/support/download/archer-c20/v6.46/#Firmware
Source dates: published 2026-08-19, last changed 2026-09-08. DeSpy's copy of this version is dated 2026-09-28.
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