CVE-2021-4479
📛 CVE Title
(no title)
Description
Dräger Atlan A350 software versions 1.00 through 1.01 contains an improper input handling vulnerability that allows attackers to cause a denial of service by sending specifically crafted non-Medibus-compliant data through the Medibus interface. Attackers can transmit malformed data to overload the internal processor, gradually disrupting device operation over several hours and causing loss of data transmission, delayed display of real-time curves, and deviation between displayed airway pressure values and screen curves.
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- medium
- CVSS score
- 2.6 / 10
- CVSS vector
AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L- Effective score
- 2.6 / 10 MEDIUM source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2021-4479
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
- 2026-06-02 20:16:28 UTC
- NVD last modified
- 2026-07-22 19:10:00 UTC
- NVD CVSS v3.1
- 4.0 / 10 MEDIUM source: disclosure@vulncheck.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L- Exploitability subscore
- 2.2 / 10
- Impact subscore
- 1.4 / 10
- EPSS score
- 0.0024 (probability of exploitation in next 30 days)
- EPSS percentile
- 15.42% vs all CVEs — higher = more likely to be exploited, as of 2026-08-01
NVD-assigned CWE(s):
CWE-1286
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-08-01 16:28 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-2021-34845 - Assigner
- VulnCheck
- Published
- Jun 2, 2026, 7:27:00 PM
- Updated
- Jun 10, 2026, 3:59:05 PM
- EUVD base score (CVSS 4.0)
-
6.3 / 10
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L - EUVD-reported EPSS
- 0.2400
- Vendors
- Dräger
- Products
-
Atlan A350 (1.00 ≤1.01)
- Aliases
-
GHSA-744p-v485-p6h6
ENISA description: Dräger Atlan A350 versions 1.00 up to and including 1.01 contains an improper input handling vulnerability that allows attackers to cause a denial of service by sending specifically crafted non-Medibus-compliant data through the Medibus interface. Attackers can transmit malformed data to overload the internal processor, gradually disrupting device operation over several hours and causing loss of data transmission, delayed display of real-time curves, and deviation between displayed airway pressure values and screen curves.
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (5)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://nvd.nist.gov/vuln/detail/CVE-2021-4479 tenable:nvd.nist.gov
- https://static.draeger.com/security/download/2021-05-04-PSA-21-124-1-Security-Advisory-Atlan.pdf tenable:static.draeger.com
- https://www.cve.org/CVERecord?id=CVE-2021-4479 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
- https://www.vulncheck.com/advisories/dr-ger-atlan-a350-dos-via-medibus-interface tenable:www.vulncheck.com
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://static.draeger.com/security/download/2021-05-04-PSA-21-124-1-Security-Advisory-Atlan.pdf disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/drager-atlan-a350-dos-via-medibus-interface disclosure@vulncheck.com
Remediations (10)
-
web:allaboutgrc.com
Vulnerability Remediation : how fast should you patch ? This is a collection of statistics I gather on the topic of vulnerability remediation timelines.
2026-06-19 02:55 UTC -
web:learn.microsoft.com
In this library you will find the following security documents that have been released by the Microsoft Security Response Center (MSRC). The MSRC investigates all reports of security vulnerabilities affecting Microsoft products and services, and releases these documents as part of the ongoing effort to help you manage security risks and help keep your systems protected. Please use the ...
2026-06-19 02:55 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.
2026-06-19 02:55 UTC -
web:securityboulevard.com
Cybersecurity vulnerabilities pose significant risks to organizations in today's digital landscape. Left unaddressed, these vulnerabilities can lead to data breaches, financial losses, and reputational damage. Organizations must decide how to tackle vulnerabilities—through remediation , mitigation , or a combination of both. But which strategy is more effective? This blog explores the ...
2026-06-19 02:55 UTC -
web:thehackernews.com
Autonomous Remediation : vulnerabilities will be detected and fixed automatically, and in accordance with policy. Oversight, Not Micromanagement: humans will guide policy and handle exceptions, rather than approving every patch . From Reactive to Proactive: security will evolve continuously with threats instead of playing catch-up.
2026-06-19 02:55 UTC -
web:www.cisa.gov
If vulnerabilities cannot be remediated within the recommended timeframes, develop a remediation plan for action and coordination across the organization. The remediation plan should include: Vulnerability remediation constraints Interim mitigation actions to overcome constraints Final actions required to remediate vulnerability
2026-06-19 02:55 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-06-19 02:55 UTC -
web:www.mend.io
Practical guide to vulnerability remediation for developers & security teams. Learn how to detect, prioritize, fix , & monitor vulnerabilities.
2026-06-19 02:55 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.
2026-06-19 02:55 UTC -
web:www.oracle.com
A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third-party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical Patch Update Advisory.
2026-06-19 02:55 UTC
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