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CVE-2022-43631

22
FAUCET Score

CVE-2022-43631 is a critical arbitrary code execution vulnerability affecting D-Link DIR-1935 1.03 routers, specifically within the web management portal's handling of SetVirtualServerSettings requests. This flaw allows network-adjacent attackers to execute code as root by bypassing authentication and exploiting improper validation of user-supplied strings in system calls. Rated 6.8 MEDIUM, it requires high privileges but has a low attack complexity, leading to high impacts on confidentiality, integrity, and availability. Currently, there is no public exploit code available, it is not listed in CISA KEV, and has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.02CPE matchmatch criteria
cpe:2.3:o:dlink:dir-1935_firmware:*:*:*:*:*:*:*:*
1.03CPE matchmatch criteria
cpe:2.3:o:dlink:dir-1935_firmware:1.03:b1:*:*:*:*:*:*
1.03CPE matchmatch criteria
cpe:2.3:o:dlink:dir-1935_firmware:1.03:b2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.8MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.08%
Probability of exploitation in next 30 days
EPSS Percentile
61.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 84th percentile among its peer group of 399 CVEs.

Social Chatter

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

supportannouncement.us.dlink.com / announcement/publication.aspx
PatchVendor Advisory
zerodayinitiative.com / advisories/ZDI-22-1502
Third Party AdvisoryVDB Entry