VulnerabilityAnalyzed

CVE-2026-75616

An OS command injection vulnerability exists in the web management interface of Archer C20 v6 firmware when processing certain WAN-related configuration operations.

HIGH 8.5EPSS 3.12%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 4.0: 8.5 HIGHCVSS: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/M
EPSS: 3.12% probability · 87th percentile
CISA KEV: Not listed
Weakness: CWE-78
Affected: tp-link/archer c20 firmware
Source: f23511db-6c3e-4e32-a477-6aa17d310630

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.