CVE-2020-25862

mediumpriority · track · 31EPSS 0.024 · 84 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.35% (84th) EPSS

CVSS 5 · medium

Is it mine?

30 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

In Wireshark 3.2.0 to 3.2.6, 3.0.0 to 3.0.13, and 2.6.0 to 2.6.20, the TCP dissector could crash. This was addressed in epan/dissectors/packet-tcp.c by changing the handling of the invalid 0xFFFF checksum.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-354USprimaryCWE-354US

affected products (30)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a n/a≤ n/aenisa_euvdEU
Fedora Project Fedora≤ 32fstec_bduRU
Fedora Project Fedora≤ 33fstec_bduRU
Fedora Project Fedora≤ 31fstec_bduRU
Novell Inc. OpenSUSE Leap≤ 15.1fstec_bduRU
Novell Inc. OpenSUSE Leap≤ 15.2fstec_bduRU
Oracle Corp. Enterprise Manager Ops Center≤ 12.4.0.0fstec_bduRU
Oracle Corp. Hyperion Planning≤ 11.1.2.4fstec_bduRU
Oracle Corp. Sun ZFS Storage Appliance Kit≤ 8.8fstec_bduRU
Wireshark team Wireshark2.6.0 → 2.6.20fstec_bduRU
Wireshark team Wireshark3.0.0 → 3.0.13fstec_bduRU
Wireshark team Wireshark3.2.0 → 3.2.6fstec_bduRU
АО «ИВК» Альт 8 СПall versionsfstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.1fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Common Edition≤ 2.12 «Орёл»fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.7fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 9fstec_bduRU

showing 20 of 30

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1917Wireshark: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2020-09-23csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Wireshark ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2020-10-06modified 2026-06-17

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+407 more

references (35)

External citations — patches, advisories, analysis.

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