CVE-2021-44622

9.8 criticalEPSS 2.6%

Critical (9.8) in tp-link tl-wr886n firmware. EPSS 2.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.6% chance of exploitation in the next 30 days; higher than 85% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2022-03-10
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tp-link:tl-wr886n_firmware

References

https://github.com/Yu3H0/IoT_CVE/tree/main/886N/chkRegVeriRegister
https://github.com/Yu3H0/IoT_CVE/tree/main/886N/chkRegVeriRegister

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