CVE-2022-40867

CRITICALNVD 9.89.8—Elevated

9.8

Tenda W20E router V15.11.0.6 (US_W20EV4.0br_V15.11.0.6(1068_1546_841)_CN_TDC) contains a stack overflow vulnerability in the function formIPMacBindDel with the request /goform/delIpMacBind/

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 64.5%
KEV: Not listed

Published

September 23, 2022

Last Modified

May 22, 2025

Advisory Details (1)

Auto-updated Jun 9, 2026

No patch confirmed yet.

generic

Router-vuls/Tenda/W20E/formIPMacBindDel.md at main · Bin2Own/Router-vuls · GitHub

https://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20E/formIPMacBindDel.md

Weakness Classification(1)

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

CWE-787Out-of-bounds Write

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:43 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-40867?

CVE-2022-40867 is a critical vulnerability published on September 23, 2022. Tenda W20E router V15.11.0.6 (USW20EV4.0brV15.11.0.6(10681546841)CNTDC) contains a stack overflow vulnerability in the function formIPMacBindDel with the request /goform/delIpMacBind/

When was CVE-2022-40867 disclosed?

CVE-2022-40867 was first published in the National Vulnerability Database on September 23, 2022, with the most recent update on May 22, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-40867 actively exploited?

CVE-2022-40867 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-40867?

CVE-2022-40867 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-40867?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-40867, 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

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CVE-2022-40867

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Router-vuls/Tenda/W20E/formIPMacBindDel.md at main · Bin2Own/Router-vuls · GitHub

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-40867?

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Advisory Details (1)

Frequently asked(5)

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