Lucene search
K

CVE-2026-20084

🗓️ 25 Mar 2026 16:02:39Reported by ciscoType 
cve
 cve
🔗 web.nvd.nist.gov👁 75 Views

CVE-2026-20084: DHCP snooping flaw leaks Bootstrap Protocol packets across VLANs, causing a denial of service on Catalyst 9000 switches.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2026-20084
25 Mar 202617:05
circl
Cisco
Cisco IOS XE Software for Catalyst 9000 Series Switches DHCP Snooping Denial of Service Vulnerability
25 Mar 202616:00
cisco
CNNVD
Cisco IOS XE Software 资源管理错误漏洞
25 Mar 202600:00
cnnvd
Cvelist
CVE-2026-20084
25 Mar 202616:02
cvelist
EUVD
EUVD-2026-15431
25 Mar 202618:31
euvd
NCSC
Vulnerabilities fixed in Cisco IOS XE Software
26 Mar 202609:50
ncsc
NVD
CVE-2026-20084
25 Mar 202616:16
nvd
Positive Technologies
PT-2026-27790
25 Mar 202600:00
ptsecurity
RedhatCVE
CVE-2026-20084
26 Mar 202617:00
redhatcve
Vulnrichment
CVE-2026-20084
25 Mar 202616:02
vulnrichment
Rows per page
Vulners
Node
OROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROROR
[
  {
    "vendor": "Cisco",
    "product": "Cisco IOS XE Software",
    "versions": [
      {
        "version": "16.6.1",
        "status": "affected"
      },
      {
        "version": "16.6.2",
        "status": "affected"
      },
      {
        "version": "16.6.3",
        "status": "affected"
      },
      {
        "version": "16.6.4",
        "status": "affected"
      },
      {
        "version": "16.6.5",
        "status": "affected"
      },
      {
        "version": "16.6.4a",
        "status": "affected"
      },
      {
        "version": "16.6.6",
        "status": "affected"
      },
      {
        "version": "16.6.7",
        "status": "affected"
      },
      {
        "version": "16.6.8",
        "status": "affected"
      },
      {
        "version": "16.6.9",
        "status": "affected"
      },
      {
        "version": "16.6.10",
        "status": "affected"
      },
      {
        "version": "16.7.1",
        "status": "affected"
      },
      {
        "version": "16.8.1",
        "status": "affected"
      },
      {
        "version": "16.8.1a",
        "status": "affected"
      },
      {
        "version": "16.8.1s",
        "status": "affected"
      },
      {
        "version": "16.9.1",
        "status": "affected"
      },
      {
        "version": "16.9.2",
        "status": "affected"
      },
      {
        "version": "16.9.1s",
        "status": "affected"
      },
      {
        "version": "16.9.3",
        "status": "affected"
      },
      {
        "version": "16.9.4",
        "status": "affected"
      },
      {
        "version": "16.9.5",
        "status": "affected"
      },
      {
        "version": "16.9.6",
        "status": "affected"
      },
      {
        "version": "16.9.7",
        "status": "affected"
      },
      {
        "version": "16.9.8",
        "status": "affected"
      },
      {
        "version": "16.10.1",
        "status": "affected"
      },
      {
        "version": "16.10.1s",
        "status": "affected"
      },
      {
        "version": "16.10.1e",
        "status": "affected"
      },
      {
        "version": "16.11.1",
        "status": "affected"
      },
      {
        "version": "16.11.1b",
        "status": "affected"
      },
      {
        "version": "16.11.1s",
        "status": "affected"
      },
      {
        "version": "16.12.1",
        "status": "affected"
      },
      {
        "version": "16.12.1s",
        "status": "affected"
      },
      {
        "version": "16.12.1c",
        "status": "affected"
      },
      {
        "version": "16.12.2",
        "status": "affected"
      },
      {
        "version": "16.12.3",
        "status": "affected"
      },
      {
        "version": "16.12.8",
        "status": "affected"
      },
      {
        "version": "16.12.2s",
        "status": "affected"
      },
      {
        "version": "16.12.4",
        "status": "affected"
      },
      {
        "version": "16.12.3s",
        "status": "affected"
      },
      {
        "version": "16.12.3a",
        "status": "affected"
      },
      {
        "version": "16.12.4a",
        "status": "affected"
      },
      {
        "version": "16.12.5",
        "status": "affected"
      },
      {
        "version": "16.12.6",
        "status": "affected"
      },
      {
        "version": "16.12.5b",
        "status": "affected"
      },
      {
        "version": "16.12.6a",
        "status": "affected"
      },
      {
        "version": "16.12.7",
        "status": "affected"
      },
      {
        "version": "17.1.1",
        "status": "affected"
      },
      {
        "version": "17.1.1s",
        "status": "affected"
      },
      {
        "version": "17.1.1t",
        "status": "affected"
      },
      {
        "version": "17.1.3",
        "status": "affected"
      },
      {
        "version": "17.2.1",
        "status": "affected"
      },
      {
        "version": "17.2.1a",
        "status": "affected"
      },
      {
        "version": "17.3.1",
        "status": "affected"
      },
      {
        "version": "17.3.2",
        "status": "affected"
      },
      {
        "version": "17.3.3",
        "status": "affected"
      },
      {
        "version": "17.3.2a",
        "status": "affected"
      },
      {
        "version": "17.3.4",
        "status": "affected"
      },
      {
        "version": "17.3.5",
        "status": "affected"
      },
      {
        "version": "17.3.6",
        "status": "affected"
      },
      {
        "version": "17.3.7",
        "status": "affected"
      },
      {
        "version": "17.3.8",
        "status": "affected"
      },
      {
        "version": "17.3.8a",
        "status": "affected"
      },
      {
        "version": "17.4.1",
        "status": "affected"
      },
      {
        "version": "17.5.1",
        "status": "affected"
      },
      {
        "version": "17.6.1",
        "status": "affected"
      },
      {
        "version": "17.6.2",
        "status": "affected"
      },
      {
        "version": "17.6.3",
        "status": "affected"
      },
      {
        "version": "17.6.1y",
        "status": "affected"
      },
      {
        "version": "17.6.4",
        "status": "affected"
      },
      {
        "version": "17.6.5",
        "status": "affected"
      },
      {
        "version": "17.6.6",
        "status": "affected"
      },
      {
        "version": "17.6.6a",
        "status": "affected"
      },
      {
        "version": "17.6.5a",
        "status": "affected"
      },
      {
        "version": "17.6.7",
        "status": "affected"
      },
      {
        "version": "17.6.8",
        "status": "affected"
      },
      {
        "version": "17.7.1",
        "status": "affected"
      },
      {
        "version": "17.10.1",
        "status": "affected"
      },
      {
        "version": "17.10.1b",
        "status": "affected"
      },
      {
        "version": "17.8.1",
        "status": "affected"
      },
      {
        "version": "17.9.1",
        "status": "affected"
      },
      {
        "version": "17.9.2",
        "status": "affected"
      },
      {
        "version": "17.9.3",
        "status": "affected"
      },
      {
        "version": "17.9.4",
        "status": "affected"
      },
      {
        "version": "17.9.5",
        "status": "affected"
      },
      {
        "version": "17.9.4a",
        "status": "affected"
      },
      {
        "version": "17.9.6",
        "status": "affected"
      },
      {
        "version": "17.9.6a",
        "status": "affected"
      },
      {
        "version": "17.9.7",
        "status": "affected"
      },
      {
        "version": "17.9.8",
        "status": "affected"
      },
      {
        "version": "17.11.1",
        "status": "affected"
      },
      {
        "version": "17.12.1",
        "status": "affected"
      },
      {
        "version": "17.12.2",
        "status": "affected"
      },
      {
        "version": "17.12.3",
        "status": "affected"
      },
      {
        "version": "17.12.4",
        "status": "affected"
      },
      {
        "version": "17.12.5",
        "status": "affected"
      },
      {
        "version": "17.12.1z5",
        "status": "affected"
      },
      {
        "version": "17.13.1",
        "status": "affected"
      },
      {
        "version": "17.14.1",
        "status": "affected"
      },
      {
        "version": "17.15.1",
        "status": "affected"
      },
      {
        "version": "17.15.2",
        "status": "affected"
      },
      {
        "version": "17.15.3",
        "status": "affected"
      },
      {
        "version": "17.15.2b",
        "status": "affected"
      },
      {
        "version": "17.15.4",
        "status": "affected"
      },
      {
        "version": "17.15.4d",
        "status": "affected"
      },
      {
        "version": "17.16.1",
        "status": "affected"
      },
      {
        "version": "17.17.1",
        "status": "affected"
      },
      {
        "version": "17.18.1",
        "status": "affected"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

26 Mar 2026 15:13Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18.6
EPSS0.00159
SSVC
75