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CVE-2019-18852

CRITICAL
9.8
CVSS Score
Published: November 11, 2019 at 01:42 PM UTC
Updated: June 17, 2026 at 02:25 AM UTC
14 products affected across 1 vendorDir 600 B1 FirmwareDir 615 J1 FirmwareDir 815 A1 Firmware

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

Certain D-Link devices have a hardcoded Alphanetworks user account with TELNET access because of /etc/config/image_sign or /etc/alpha_config/image_sign. This affects DIR-600 B1 V2.01 for WW, DIR-890L A1 v1.03, DIR-615 J1 v100 (for DCN), DIR-645 A1 v1.03, DIR-815 A1 v1.01, DIR-823 A1 v1.01, and DIR-842 C1 v3.00.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Dir 600 B1 Firmware· D-Link
95%
2.01
dlink-dir-600-b1 (same device)
Dir 615 J1 Firmware· D-Link
95%
100
dlink-dir-615-j1 (same device)
Dir 645 A1 Firmware· D-Link
95%
1.03
dlink-dir-645-a1 (same device)
Dir 815 A1 Firmware· D-Link
95%
1.01
dlink-dir-815-a1 (same device)
Dir 823 A1 Firmware· D-Link
95%
1.01
dlink-dir-823-a1 (same device)
Dir 842 C1 Firmware· D-Link
95%
3.00
dlink-dir-842-c1 (same device)
Dir 890L A1 Firmware· D-Link
95%
1.03
dlink-dir-890l-a1 (same device)
Dir-600 B1· D-Linkdevice
80%
All versions
Dir-615 J1· D-Linkdevice
80%
All versions
Dir-645 A1· D-Linkdevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/ChandlerChin/Dlink_vuls/blob/master/A%20hard%20coded%20telnet%20user%20was%20discovered%20in%20multiple%20Dlink%20routers.pdf

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-319

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