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Fencer Intel
medium 5.5

CVE-2020-26164 json

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 a…

published 6y ago modified 4mo ago also EUVD-2020-18789

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

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.

Patch / fix

  • kde kdeconnect 20.08.2
  • kdeconnect Debian 14, Debian 13, Debian 12 20.08.2-1

debian advisories DEBIAN-CVE-2020-26164

  • kdeconnect-kde Package Hub 15 SP2 20.04.2-bp152.2.3.1
  • kdeconnect-kde Package Hub 15 SP1 1.3.3-bp151.4.3.1
  • kdeconnect-kde openSUSE Leap 15.2, openSUSE Leap 15.1 20.04.2-lp152.2.3.1

opensuse advisories openSUSE-SU-2020:1650-1openSUSE-SU-2020:1647-1openSUSE-SU-2020:1631-1

  • kdeconnect Alpine 3.24, Alpine 3.23, Alpine 3.22 +9 more 20.08.2-r0

alpine advisories ALPINE-CVE-2020-26164

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kdeconnect Arch Linux 20.08.2-1

arch linux advisories AVG-1241

Is CVE-2020-26164 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-26164 updated cvss 6.2

kde-connect: packet manipulation can be exploited in a Denial of Service attack

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.