Dir 456u
Vendor:
First CVE: May 4, 2026 · Active for under a year
1
Total CVEs
Bottom 1%
1.0
Avg CVEs / Year
Bottom 1%
9.8
Avg CVSS
Higher Avg CVSS than 87% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Dir 456u over time
Volume of CVEsAvg CVSS Base Score
First CVE
May 4, 2026
2 months ago
Most Recent CVE
May 4, 2026
82 days ago
CVE Severity & Scoring
Dir 456u1 CVEs
100%
All CVEs352,427 CVEs
45%
40%
11%
Critical
Attack Vector
Local0 (0.0%)
Network1 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low1 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None1 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None1 (100.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (1 CVEs).
1 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-42376CRITICAL D-Link DIR-456U Hardware Revision A1 (End-of-Life, EOL) contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /etc/init0.d/S80telnetd.sh with the user | May 4, 2026 | 9.8 | 38 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (1 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (1 CVEs).
Media Mentions
Signals from CVEs in this product scope (1 CVEs).
Top CWEs
Versions
No cataloged versions.