CVE-2022-26188
Published: 22 March 2022
Summary
CVE-2022-26188 is a critical-severity Command Injection (CWE-77) vulnerability in Totolink N600R Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 11.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
TOTOLINK N600R V4.3.0cu.7570_B20200620 contains a command injection vulnerability in the /setting/NTPSyncWithHost endpoint. The flaw is tracked as CVE-2022-26188 with a CVSS 3.1 score of 9.8 and is classified under CWE-77.
Unauthenticated attackers with network access can supply crafted input to the affected endpoint and execute arbitrary operating-system commands. Successful exploitation grants full control over the device, allowing confidentiality, integrity, and availability impacts without any user interaction or credentials.
The EPSS score for this CVE rose from a low baseline to a peak of 0.1944 on 2025-12-11 before receding to the current value of 0.0400, indicating a period of increased exploitation interest after disclosure. Public references consist of a technical write-up detailing the injection vector but contain no vendor advisory or patch information.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-30752
Vulnerability details
TOTOLINK N600R V4.3.0cu.7570_B20200620 was discovered to contain a command injection vulnerability via /setting/NTPSyncWithHost.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.