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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-26164

In kdeconnect-kde (aka KDE Connect) before 20.08.2, an attacker on the local network could send crafted packets that trigger use of large amounts of CPU, memory, or network connection slots, aka a Denial of Service attack.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-26164
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 12:37 UTC · Revision 1

Source evidence

CVE-2020-26164

core-osv · Original source

Published 7 Oct 2020, 19:15 UTC

In kdeconnect-kde (aka KDE Connect) before 20.08.2, an attacker on the local network could send crafted packets that trigger use of large amounts of CPU, memory, or network connection slots, aka a Denial of Service attack.

osv:CVE-2020-26164
Complete source record
{
  "id": "5aac9d93836357a3dbeae656160826ba4b5957bcbce8fd5fbfab627a7f8835af",
  "url": "https://osv.dev/vulnerability/CVE-2020-26164",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-26164",
    "summary": "In kdeconnect-kde (aka KDE Connect) before 20.08.2, an attacker on the local network could send crafted packets that trigger use of large amounts of CPU, memory, or network connection slots, aka a Denial of Service attack.",
    "evidence": "osv:CVE-2020-26164",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-26164",
      "aliases": [
        "CVE-2020-26164"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://github.com/kde/kdeconnect-kde",
              "type": "GIT",
              "events": [
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                {
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                },
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                  "fixed": "024e5f23db8d8ad3449714b906b46094baaffb89"
                },
                {
                  "fixed": "4fbd01a3d44a0bcca888c49a77ec7cfd10e113d7"
                },
                {
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                },
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                },
                {
                  "fixed": "8112729eb0f13e6947984416118531078e65580d"
                },
                {
                  "fixed": "ce0f00fc2d3eccb51d0af4eba61a4f60de086a59"
                }
              ],
              "database_specific": {
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                    "cpe": "cpe:2.3:a:kde:kdeconnect:*:*:*:*:*:*:*:*",
                    "range": [
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                        "introduced": "0"
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                  },
                  {
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                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
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                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
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                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
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                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v20.08.1",
            "v20.08.0",
            "v20.07.90",
            "v20.07.80",
            "v1.4",
            "v1.2.1",
            "v1.0.1",
            "v1.0",
            "v0.8",
            "v0.7.3",
            "v0.7.2",
            "v0.7.1",
            "v0.7",
            "v0.4.2",
            "v0.4.1",
            "v0.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26164.json",
            "vanir_signatures": [
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                },
                "source": "https://github.com/kde/kdeconnect-kde/commit/ce0f00fc2d3eccb51d0af4eba61a4f60de086a59",
                "target": {
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                  "function": "LanLinkProvider::udpBroadcastReceived"
                },
                "deprecated": false,
                "signature_type": "Function",
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              },
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                "target": {
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                "source": "https://github.com/kde/kdeconnect-kde/commit/8112729eb0f13e6947984416118531078e65580d",
                "target": {
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                "signature_type": "Function",
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              },
              {
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                "digest": {
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                "source": "https://github.com/kde/kdeconnect-kde/commit/ce0f00fc2d3eccb51d0af4eba61a4f60de086a59",
                "target": {
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              },
              {
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                "source": "https://github.com/kde/kdeconnect-kde/commit/8112729eb0f13e6947984416118531078e65580d",
                "target": {
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                  "function": "SocketLineReader::dataReceived"
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              {
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                "id": "CVE-2020-26164-e48fe50e",
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            "vanir_signatures_modified": "2026-10-20T14:05:19Z"
          }
        }
      ],
      "modified": "2026-10-20T14:05:19.550198058Z",
      "provider": "osv",
      "references": [
        "https://kdeconnect.kde.org/official/",
        "https://github.com/KDE/kdeconnect-kde/releases",
        "https://kde.org/info/security/advisory-20201002-1.txt",
        "https://lists.opensuse.org/opensuse-security-announce/2020-10/msg00014.html",
        "https://security.gentoo.org/glsa/202101-16",
        "https://bugzilla.suse.com/show_bug.cgi?id=1176268",
        "https://github.com/KDE/kdeconnect-kde/commit/024e5f23db8d8ad3449714b906b46094baaffb89",
        "https://github.com/KDE/kdeconnect-kde/commit/4fbd01a3d44a0bcca888c49a77ec7cfd10e113d7",
        "https://github.com/KDE/kdeconnect-kde/commit/542d94a70c56aa386c8d4d793481ce181b0422e8",
        "https://github.com/KDE/kdeconnect-kde/commit/613899be24b6e2a6b3e5cc719efce8ae8a122991",
        "https://github.com/KDE/kdeconnect-kde/commit/8112729eb0f13e6947984416118531078e65580d",
        "https://github.com/KDE/kdeconnect-kde/commit/ce0f00fc2d3eccb51d0af4eba61a4f60de086a59"
      ],
      "provider_metadata": {
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              "cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:backports_sle",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "15.0-sp1"
                  },
                  {
                    "last_affected": "15.0-sp1"
                  },
                  {
                    "introduced": "15.0-sp2"
                  },
                  {
                    "last_affected": "15.0-sp2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
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              "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:leap",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "15.1"
                  },
                  {
                    "last_affected": "15.1"
                  },
                  {
                    "introduced": "15.2"
                  },
                  {
                    "last_affected": "15.2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-26164",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388552,
  "published_at": "2020-10-07T19:15:12.987+00:00"
}