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CVE-2026-62370

📛 CVE Title

KubeEdge: Unbounded allocation in viaduct packer enables authenticated remote DoS against CloudHub

⬇ Download JSON

Description

KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.0.0 until 1.21.2, 1.22.2, and 1.23.1, Reader.Read in pkg/viaduct/pkg/packer trusts the 32-bit PackageHeader.PayloadLen received through the CloudHub viaduct message-processing path and allocates that amount of memory before validating an upper bound. An authenticated malicious or compromised edge peer can repeatedly send crafted headers with excessive declared lengths, causing memory exhaustion, CloudHub process termination or restart loops, and temporary disruption of cloud-edge communication. This issue does not provide unauthenticated access or direct code execution. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.

Overview

State
PUBLISHED
Assigner (CNA)
GitHub_M
CVSS severity
MEDIUM
CVSS score
CVSS 6.5 / 10 6.5 6.5 / 10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Effective score
6.5 / 10 MEDIUM source: CNA overview
CWE(s)
CWE-789
Reserved
2026-07-13
Published
2026-09-21 17:07 UTC
Last updated
2026-09-21 17:07 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/62xxx/CVE-2026-62370.json

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
2026-09-21 17:17:36 UTC
NVD last modified
2026-09-21 17:17:36 UTC
NVD CVSS v3.1
CVSS 6.5 / 10 6.5 6.5 / 10 MEDIUM source: security-advisories@github.com
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore
2.8 / 10
Impact subscore
3.6 / 10

NVD / KEV / EPSS data refreshed 2026-09-22 03:39 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-2026-84004
Assigner
GitHub_M
Published
Sep 21, 2026, 5:07:31 PM
Updated
Sep 21, 2026, 5:07:31 PM
EUVD base score (CVSS 3.1)
6.5 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EUVD-reported EPSS
0.0000
Vendors
kubeedge
Products
kubeedge (1.0.0, < 1.21.2)
kubeedge (1.22.0, < 1.22.2)
kubeedge (1.23.0, < 1.23.1)

ENISA description: KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.0.0 until 1.21.2, 1.22.2, and 1.23.1, Reader.Read in pkg/viaduct/pkg/packer trusts the 32-bit PackageHeader.PayloadLen received through the CloudHub viaduct message-processing path and allocates that amount of memory before validating an upper bound. An authenticated malicious or compromised edge peer can repeatedly send crafted headers with excessive declared lengths, causing memory exhaustion, CloudHub process termination or restart loops, and temporary disruption of cloud-edge communication. This issue does not provide unauthenticated access or direct code execution. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.

EUVD references (13)

Affected products (1)
VendorProductVersionsPlatforms
kubeedge kubeedge >= 1.0.0, < 1.21.2 (affected), >= 1.22.0, < 1.22.2 (affected), >= 1.23.0, < 1.23.1 (affected) —

Vendor references (13)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (13)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (10)

  • July 2026 Critical Patch Update Released | security - Oracle Blogs
    web:blogs.oracle.com

    For more information about the Critical Patch Update program, see the security vulnerability remediation practices page located on the Oracle Trust Center.

    2026-09-22 17:10 UTC
  • Security Advisories and Bulletins | Microsoft Learn
    web:learn.microsoft.com

    Learning path Learn how Microsoft supports secure software development as part of a cybersecurity solution - Training Secure software development means integrating security into each phase of your development lifecycle, from requirements analysis to maintenance. Microsoft provides many services that can help you develop more secure code and deploy a more secure application in the cloud. This ...

    2026-09-22 17:10 UTC
  • Security Update Guide - Microsoft
    web:msrc.microsoft.com

    The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

    2026-09-22 17:10 UTC
  • Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva
    web:senserva.com

    Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

    2026-09-22 17:10 UTC
  • CVE-2026-62737: No Windows 11 Flaw or Fix Confirmed
    web:windowsforum.com

    A claimed Windows 11 kernel privilege-escalation flaw tied to ExecutionContext.sys has surfaced one day before Microsoft's August 11, 2026 Patch Tuesday, but administrators should treat it as an unverified report rather than a confirmed Windows zero-day.

    2026-09-22 17:10 UTC
  • August's Patch Tuesday is a monster: 751 fixes, with an exploited ...
    web:www.computerworld.com

    August's Patch Tuesday is a big one: 751 fixes, an exploited WinSock flaw and plenty of critical Windows, Office and Exchange issues.

    2026-09-22 17:10 UTC
  • Oracle Critical Patch Update Advisory - April 2026
    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.

    2026-09-22 17:10 UTC
  • Oracle Critical Patch Update Advisory - July 2026
    web:www.oracle.com

    This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

    2026-09-22 17:10 UTC
  • Track Critical Vulnerabilities with Qualys Security Advisories
    web:www.qualys.com

    Get timely updates on security threats, vulnerabilities, and recommended solutions through Qualys security advisories, helping you secure your infrastructure.

    2026-09-22 17:10 UTC
  • Patch Tuesday September 2026: Security Updates & CVE Analysis
    web:zecurit.com

    Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

    2026-09-22 17:10 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-62370.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "kubeedge",
          "vendor": "kubeedge",
          "versions": [
            {
              "status": "affected",
              "version": ">= 1.0.0, < 1.21.2"
            },
            {
              "status": "affected",
              "version": ">= 1.22.0, < 1.22.2"
            },
            {
              "status": "affected",
              "version": ">= 1.23.0, < 1.23.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.0.0 until 1.21.2, 1.22.2, and 1.23.1, Reader.Read in pkg/viaduct/pkg/packer trusts the 32-bit PackageHeader.PayloadLen received through the CloudHub viaduct message-processing path and allocates that amount of memory before validating an upper bound. An authenticated malicious or compromised edge peer can repeatedly send crafted headers with excessive declared lengths, causing memory exhaustion, CloudHub process termination or restart loops, and temporary disruption of cloud-edge communication. This issue does not provide unauthenticated access or direct code execution. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-789",
              "description": "CWE-789: Memory Allocation with Excessive Size Value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-21T17:07:31.398Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/kubeedge/kubeedge/security/advisories/GHSA-gfw4-49f9-cp25",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kubeedge/kubeedge/security/advisories/GHSA-gfw4-49f9-cp25"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/pull/7028",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/pull/7028"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/pull/7029",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/pull/7029"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/pull/7030",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/pull/7030"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/commit/0fe1ea18e5d7fde29633286ddf1c7e71cb39606f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/commit/0fe1ea18e5d7fde29633286ddf1c7e71cb39606f"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/commit/725a73ca35a65d91aa6338e52b8faaab6058f528",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/commit/725a73ca35a65d91aa6338e52b8faaab6058f528"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/commit/cc79621943fff9d3f62638d9403ef0cfeda3d0e7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/commit/cc79621943fff9d3f62638d9403ef0cfeda3d0e7"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.21.md",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.21.md"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.22.md",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.22.md"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.23.md",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.23.md"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/releases/tag/v1.21.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/releases/tag/v1.21.2"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/releases/tag/v1.22.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/releases/tag/v1.22.2"
        },
        {
          "name": "https://github.com/kubeedge/kubeedge/releases/tag/v1.23.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/kubeedge/kubeedge/releases/tag/v1.23.1"
        }
      ],
      "source": {
        "advisory": "GHSA-gfw4-49f9-cp25",
        "discovery": "UNKNOWN"
      },
      "title": "KubeEdge: Unbounded allocation in viaduct packer enables authenticated remote DoS against CloudHub"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-62370",
    "datePublished": "2026-09-21T17:07:31.398Z",
    "dateReserved": "2026-07-13T22:04:59.678Z",
    "dateUpdated": "2026-09-21T17:07:31.398Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}