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CVE-2022-40720

28
FAUCET Score

CVE-2022-40720 is a critical command injection vulnerability affecting D-Link DIR-2150 4.0.1 routers, specifically within the xupnpd service's Dreambox plugin. This flaw allows unauthenticated, network-adjacent attackers to execute arbitrary commands on the router due to improper validation of user-supplied input. With a CVSS score of 8.8 (High), exploitation requires low attack complexity and can lead to complete compromise of the router, including confidentiality, integrity, and availability. Currently, there is no public exploit code available, it is not listed in CISA's KEV catalog, and there is minimal community discussion or media coverage, suggesting it is not under active exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.1CPE matchmatch criteria
cpe:2.3:o:dlink:dir-2150_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 72nd percentile among its peer group of 1,859 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

supportannouncement.us.dlink.com / announcement/publication.aspx
PatchVendor Advisory
zerodayinitiative.com / advisories/ZDI-22-1224
Third Party AdvisoryVDB Entry