CVE-2021-44629

CRITICALNVD 9.89.8—Trending — 4 sources updated this week

9.8

A Buffer Overflow vulnerabilitiy exists in TP-LINK WR-886N 20190826 2.3.8 in the /cloud_config/router_post/register feature, which allows malicious users to execute arbitrary code on the system via a crafted post request.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 77.1%
KEV: Not listed

Published

March 10, 2022

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/Yu3H0/IoT_CVE/tree/main/886N/registerRegister
af854a3a-2127-422b-91ae-364da2661108https://github.com/Yu3H0/IoT_CVE/tree/main/886N/registerRegister

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 12× in last 7d / 12× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 01:56 UTCEG score recompute
2026-05-26 01:56 UTCGHSA enrichment
2026-05-24 20:12 UTCOSV refresh

Frequently asked(5)

What is CVE-2021-44629?

CVE-2021-44629 is a critical vulnerability published on March 10, 2022. A Buffer Overflow vulnerabilitiy exists in TP-LINK WR-886N 20190826 2.3.8 in the /cloudconfig/routerpost/register feature, which allows malicious users to execute arbitrary code on the system via a crafted post request.

When was CVE-2021-44629 disclosed?

CVE-2021-44629 was first published in the National Vulnerability Database on March 10, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-44629 actively exploited?

CVE-2021-44629 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 77.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-44629?

CVE-2021-44629 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-44629?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-44629, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-44629

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CVE-2021-44629

📅 Published

🔄 Last Modified

🔗 References (2)