CVE-2021-44622
CVSS v3
9.8
CRITICAL
EPSS Score
2.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the /cloud_config/router_post/check_reg_verify_code function which could let a remove malicious user execute arbitrary code via a crafted post request.
Technical details
- Published
- 2022-03-10
Frequently asked questions
What is CVE-2021-44622?
A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the /cloud_config/router_post/check_reg_verify_code function which could let a remove malicious user execute arbitrary code via a crafted post request.
Is CVE-2021-44622 actively exploited?
Active exploitation of CVE-2021-44622 has not been confirmed. Its EPSS score was 2.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-44622?
CVE-2021-44622 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-44622 affecting your environment?
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