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CVE-2026-42376

🗓️ 04 May 2026 16:03:59Reported by securinType 
cve
 cve
🔗 web.nvd.nist.gov👁 63 Views

D-Link DIR-456U A1 has a hardcoded telnet backdoor with Alphanetworks credentials for root access.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-42376
4 May 202616:03
–attackerkb
bdu_fstec
BDU FSTEC
D-Link DIR-456U telnetd.sh Script Privilege Escalation Command Injection
6 May 202600:00
–bdu_fstec
circl
Circl
CVE-2026-42376
4 May 202617:02
–circl
cnnvd
CNNVD
D-Link DIR-456U has vulnerabilities related to trust management.
4 May 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-42376 D-Link DIR-456U A1 Hardcoded Telnet Backdoor Credentials
4 May 202616:03
–cvelist
euvd
EUVD
EUVD-2026-27029
4 May 202616:03
–euvd
nvd
NVD
CVE-2026-42376
4 May 202617:16
–nvd
ptsecurity
Positive Technologies
PT-2026-36837
20 Apr 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-42376: Use of Hard-coded Credentials
4 May 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-42376
5 Jun 202619:15
–redhatcve
Rows per page
NVD
[
  {
    "vendor": "D-Link",
    "product": "DIR-456U Firmware",
    "platforms": [
      "MIPS32 Little-Endian"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "A1",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "affected",
    "cpes": [
      "cpe:2.3:o:dlink:dir-456u_firmware:*:*:*:*:*:*:*:*"
    ]
  }
]

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17 Jun 2026 10:47Current
8High risk
Vulners AI Score8
CVSS 3.19.8
EPSS0.00848
SSVC
63