CVE-2022-40946

HIGHNVD 7.57.5—Elevated

7.5

On D-Link DIR-819 Firmware Version 1.06 Hardware Version A1 devices, it is possible to trigger a Denial of Service via the sys_token parameter in a cgi-bin/webproc?getpage=html/index.html request.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 90.3%
KEV: Not listed

Published

April 16, 2023

Last Modified

February 6, 2025

References (6)

cve@mitrehttp://packetstormsecurity.com/files/171484/D-Link-DIR-819-A1-Denial-Of-Service.html
cve@mitrehttps://github.com/whokilleddb/dlink-dir-819-dos
cve@mitrehttps://www.dlink.com/en/security-bulletin/
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/171484/D-Link-DIR-819-A1-Denial-Of-Service.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/whokilleddb/dlink-dir-819-dos
af854a3a-2127-422b-91ae-364da2661108https://www.dlink.com/en/security-bulletin/

Weakness Classification(1)

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

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 11× in last 7d / 20× 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.

2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
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2026-05-26 07:17 UTCepss_batch

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-51053
First seen Mar 25, 2023
DLink DIR 819 A1 - Denial of Service
Open source ↗

Frequently asked(5)

What is CVE-2022-40946?

CVE-2022-40946 is a high vulnerability published on April 16, 2023. On D-Link DIR-819 Firmware Version 1.06 Hardware Version A1 devices, it is possible to trigger a Denial of Service via the sys_token parameter in a cgi-bin/webproc?getpage=html/index.html request.

When was CVE-2022-40946 disclosed?

CVE-2022-40946 was first published in the National Vulnerability Database on April 16, 2023, with the most recent update on February 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-40946 actively exploited?

CVE-2022-40946 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-40946?

CVE-2022-40946 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2022-40946?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-40946, 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-2022-40946

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-40946?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (6)

Frequently asked(5)

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