CVE-2021-44827
HIGH
8.8
CVSS Score
Published: March 4, 2022 at 09:27 PM UTC
Updated: June 17, 2026 at 04:12 AM UTC
2 products affected across 1 vendorArcher C20I FirmwareArcher C20I
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.8
Exploit prediction
EPSS 54%
Description
There is remote authenticated OS command injection on TP-Link Archer C20i 0.9.1 3.2 v003a.0 Build 170221 Rel.55462n devices vie the X_TP_ExternalIPv6Address HTTP parameter, allowing a remote attacker to run arbitrary commands on the router with root privileges.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Archer C20I· TP-Linkdevice
80%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://full-disclosure.eu/reports/2022/CVE-2021-44827-tplink-authenticated-remote-code-execution.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-78
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card