CVE-2019-18852

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-319

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/ChandlerChin/Dlink_vuls/blob/master/A%20hard%20coded%20telnet%20user%20was%20discovered%20in%20multiple%20Dlink%20routers.pdfExploit, Third Party Advisory
https://github.com/ChandlerChin/Dlink_vuls/blob/master/A%20hard%20coded%20telnet%20user%20was%20discovered%20in%20multiple%20Dlink%20routers.pdfExploit, Third Party Advisory

Timeline

Published: Nov 11, 2019
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2019

CVE-2019-188536.5ImageMagick before 7.0.9-0 allows remote attackers to cause a denial of service because XML_PARSE_HUGE is not properly restricted in coders/CVE-2019-188547.5A Denial Of Service vulnerability exists in the safe-svg (aka Safe SVG) plugin through 1.9.4 for WordPress, related to unlimited recursion f CVE-2019-188557.5A Denial Of Service vulnerability exists in the safe-svg (aka Safe SVG) plugin through 1.9.4 for WordPress, related to potentially unwanted CVE-2019-188567.5A Denial Of Service vulnerability exists in the SVG Sanitizer module through 8.x-1.0-alpha1 for Drupal because access to external resources CVE-2019-188577.5darylldoyle svg-sanitizer before 0.12.0 mishandles script and data values in attributes, as demonstrated by unexpected whitespace such as in CVE-2019-188589.8CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow.CVE-2019-188596.1Digi AnywhereUSB 14 allows XSS via a link for the Digi Page.CVE-2019-18868.6A vulnerability in the HTTPS decryption feature of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cau CVE-2019-188606.1Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi.CVE-2019-188627.8maidag in GNU Mailutils before 3.8 is installed setuid and allows local privilege escalation in the url mode.CVE-2019-188635.9A key length vulnerability in the implementation of the SRTP 128-bit key on Mitel 6800 and 6900 SIP series phones, versions 5.1.0.2051 SP2 a CVE-2019-188647.5/server-info and /server-status in Blaauw Remote Kiln Control through v3.00r4 allow an unauthenticated attacker to gain sensitive informatio