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CVE-2022-40946

38
FAUCET Score

CVE-2022-40946 is a Denial of Service (DoS) vulnerability affecting D-Link DIR-819 routers with Firmware Version 1.06 and Hardware Version A1. An unauthenticated attacker can trigger this DoS by manipulating the 'sys_token' parameter in a specific web request. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network without user interaction, leading to a complete loss of availability for the device. While not currently on CISA's KEV catalog, public exploit code exists on ExploitDB, though there is minimal community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
1.06CPE matchmatch criteria
cpe:2.3:o:dlink:dir-819_firmware:1.06:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.97%
Probability of exploitation in next 30 days
EPSS Percentile
94.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-51053 · Mar 25, 2023
This CVE's current EPSS score of 0.0797 is in the 90th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/171484/D-Link-DIR-819-A1-Denial-Of-Service.html
ExploitThird Party AdvisoryVDB Entry
github.com / whokilleddb/dlink-dir-819-dos
ExploitThird Party Advisory
dlink.com / en/security-bulletin
Product