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CVE-2023-44421

24
FAUCET Score

CVE-2023-44421 is a critical command injection vulnerability affecting D-Link DIR-X3260 routers, specifically within the prog.cgi program handling HNAP requests. This flaw allows network-adjacent attackers to execute arbitrary code with root privileges due to insufficient validation of user-supplied input in system calls, even though authentication is technically required but bypassable. Rated with a CVSS score of 8.0 (HIGH), the vulnerability presents a significant risk for complete compromise of affected devices. Currently, there is no public exploit intelligence, Metasploit modules, or significant community discussion, suggesting it is not actively exploited in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.04b01CPE matchmatch criteria
cpe:2.3:o:dlink:dir-x3260_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.0HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.11%
Probability of exploitation in next 30 days
EPSS Percentile
62.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0111 is in the 65th percentile among its peer group of 554 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

zerodayinitiative.com / advisories/ZDI-23-1519
Third Party Advisory