TI-2021-20174 Aliases CVE-2021-44622 GHSA-ccr2-wgpp-8crp

A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the…

MEDIUM 47CWE-120Published 2022-03-09 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.02576 85th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:tp-link:tl-wr886n_firmware:20190826_2.3.8:::::::*	20190826_2.3.8	Vulnerable	TP-Link
cpe:2.3:h:tp-link:tl-wr886n:-:::::::*	not specified by NVD	Running on	TP-Link

cpe:2.3:o:tp-link:tl-wr886n_firmware:20190826_2.3.8:*:*:*:*:*:*:* Versions 20190826_2.3.8 Vulnerable ·TP-Link
cpe:2.3:h:tp-link:tl-wr886n:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-44622
2026-10-03 Alias added: GHSA-ccr2-wgpp-8crp

References

Exploit 1

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

TI-2021-20183 A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the… CVSS 3.1CRITICAL 9.8
TI-2021-20182 A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the… CVSS 3.1CRITICAL 9.8
TI-2021-20181 A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the… CVSS 3.1CRITICAL 9.8
TI-2021-20180 A Buffer Overflow vulnerabilitiy exists in TP-LINK WR-886N 20190826 2.3.8 in the… CVSS 3.1CRITICAL 9.8
TI-2021-20179 A Buffer Overflow vulnerabiltiy exists in TP-LINK WR-886N 20190826 2.3.8 in thee… CVSS 3.1CRITICAL 9.8
TI-2021-20178 A Buffer Overflow vulnerability exists in TP-LINK WR-886N 20190826 2.3.8 in the… CVSS 3.1CRITICAL 9.8

See all 38 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences