CVE-2026-4377
📛 CVE Title
Use of Weak Credentials in D-Link DWR-X1820 router
Description
Dlink DWR-X1820 router uses weak default password generated from its IMEI number and does not require users to change it. An attacker who knows how passwords are generated can easily crack the default password if they have the device IMEI number. This issue was fixed in version 1.00B16CP.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- CERT-PL
- CVSS severity
- MEDIUM
- CVSS score
- 6.0 / 10
- CVSS vector
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N- Effective score
- 6.0 / 10 MEDIUM source: CNA overview
- CWE(s)
-
CWE-1391 - Reserved
- 2026-03-18
- Published
- 2026-05-28 09:02 UTC
- Last updated
- 2026-05-28 12:02 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/4xxx/CVE-2026-4377.json
- Linked Threat
- CVE-2026-4377 — CVE-2026-4377
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-28 10:16:39 UTC
- NVD last modified
- 2026-06-17 10:56:30 UTC
- EPSS score
- 0.0014 (probability of exploitation in next 30 days)
- EPSS percentile
- 3.86% vs all CVEs — higher = more likely to be exploited, as of 2026-07-28
NVD / KEV / EPSS data refreshed 2026-07-28 16:24 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-32860 - Assigner
- CERT-PL
- Published
- May 28, 2026, 9:02:44 AM
- Updated
- May 28, 2026, 12:02:42 PM
- EUVD base score (CVSS 4.0)
-
6.0 / 10
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - EUVD-reported EPSS
- 0.1400
- Vendors
- D-Link Corporation
- Products
-
DWR-X1820 (1.00B14CP <1.00B16CP)
- Aliases
-
GHSA-624f-p4gg-qwg2
ENISA description: Dlink DWR-X1820 router uses weak default password generated from its IMEI number and does not require users to change it. An attacker who knows how passwords are generated can easily crack the default password if they have the device IMEI number. This issue was fixed in version 1.00B16CP.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| D-Link Corporation | DWR-X1820 |
1.00B14CP (affected)
|
— |
Vendor references (2)
References embedded in the original CVE record by the assigning CNA.
- https://cert.pl/posts/2026/05/CVE-2026-4377 third-party-advisory
- https://www.dlink.com/pl/pl/products/dwr-1820-cp#support product
MITRE references (1) cveawg.mitre.org
Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.
Web references (4)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://cert.pl/posts/2026/05/CVE-2026-4377 tenable:cert.pl
- https://nvd.nist.gov/vuln/detail/CVE-2026-4377 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-4377 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
NVD-tagged references (2)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://cert.pl/posts/2026/05/CVE-2026-4377 cvd@cert.pl
- https://www.dlink.com/pl/pl/products/dwr-1820-cp#support cvd@cert.pl
Remediations (18)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:csrc.nist.gov
Enterprise patch management is the process of identifying, prioritizing, acquiring, installing, and verifying the installation of patches, updates, and upgrades throughout an organization. Patching is more important than ever because of the increasing reliance on technology, but there is often a divide between business/mission owners and security/technology management about the value of ...
2026-06-08 15:48 UTC -
web:cybersecuritynews.com
Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.
2026-06-08 15:48 UTC -
web:github.com
Mitigation Recommendation for CVE - 2026 -47774 TL;DR; continue reading if your Envoy's terminate untrusted H/2 requests. In response to the 0-day CVE - 2026 -47774 Envoy maintainer had published a set of patches to mitigate DoS attack over H/2 protocol using a specifically crafted cookie header.
2026-06-08 15:48 UTC -
web:nvd.nist.gov
The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...
2026-06-08 15:48 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-06-08 15:48 UTC -
web:support.microsoft.com
This out-of-band Hotpatch update for Windows 11, version 25H2 and 24H2 (KB5078167), improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different ...
2026-06-08 15:48 UTC -
web:www.oracle.com
Critical Security Patch Updates Critical Security Patch Updates provide security patches for supported Oracle on-premises products. A Critical Security Patch Update provides targeted, high-priority security fixes in a smaller, more focused format, making them easier to apply with minimal disruption.
2026-06-08 15:48 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-06-08 15:48 UTC -
web:www.windowscentral.com
A faulty BitLocker configuration is forcing some PCs into BitLocker recovery mode after the April 2026 update, but there's a workaround to resolve this issue.
2026-06-08 15:48 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-06-08 15:48 UTC -
web:blogs.oracle.com
For more information about the Critical Security Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.
2026-06-19 02:28 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-06-19 02:28 UTC -
web:support.microsoft.com
This update for Windows 11, version 25H2 and 24H2 (KB5084597) incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To view the ...
2026-06-19 02:28 UTC -
web:support.sap.com
SAP security Patch Day Bulletin
2026-06-19 02:28 UTC -
web:www.crowdstrike.com
Microsoft has released security updates for 130 vulnerabilities, including 30 critical, in its May 2026 Patch Tuesday rollout.
2026-06-19 02:28 UTC -
web:www.oracle.com
This Critical Security Patch Update contains 35 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Security Patch Update and other Oracle Software Security Assurance activities is located at May 2026 Critical Security Patch Update: Executive Summary and Analysis.
2026-06-19 02:28 UTC -
web:www.pesmodding.com
ePatch 2026 , Version 37.0+ January 2026 Presented By MODY 99
2026-06-19 02:28 UTC -
web:www.rapid7.com
Microsoft is publishing 200 vulnerabilities on June 2026 Patch Tuesday, including an HTTP/2 denial of service vulnerability and an elevation of privilege vulnerability in PowerToys.
2026-06-19 02:28 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-4377.json.
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