Read the docs
TI-2021-20175 Aliases CVE-2021-44623GHSA-h2f9-c6rv-qv9q

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

Priority MEDIUM 46CWE-120Published · Updated

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 via the /cloud_config/router_post/check_reset_pwd_verify_code interface.

Why it matters now

EPSS 0.01782 78th 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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:tl-wr886n_firmware:20190826_2.3.8:*:*:*:*:*:*:*20190826_2.3.8VulnerableTP-Link
cpe:2.3:h:tp-link:tl-wr886n:-:*:*:*:*:*:*:*not specified by NVDRunning onTP-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

  1. 2026-10-02 Threatist record created from CVE-2021-44623
  2. 2026-10-03 Alias added: GHSA-h2f9-c6rv-qv9q

References

Exploit 1

  • 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