CVE-2026-76886

criticalpriority · track · 39EPSS 0.004 · 32 %ileDERUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.38% (32nd) EPSS

CVSS 9.8 · critical

Is it mine?

13 products

Check your exposure

Who says so?

3 sources

fstec_bdu · cert_bund · nvd

EPSS · scored 2026-10-28

C12.22 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.18.1highAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · cve@gitlab.comexploitability 2.2 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USCWE-122USCWE-190US

affected products (13)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Open Source Wireshark< 4.4.18cert_bundDE
Open Source Wireshark< 4.6.8cert_bundDE
Wireshark team Wireshark4.4.0 → 4.4.18fstec_bduRU
Wireshark team Wireshark4.6.0 → 4.6.8fstec_bduRU
wireshark wireshark4.4.0 → 4.4.18nvdUScpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
wireshark wireshark4.6.0 → 4.6.8nvdUScpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2806Wireshark: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-08-12csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Wireshark ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (1)

Other names and identifiers for this entity.

BDU:2026-12046 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2026-08-19modified 2026-10-24

references (3) nvd

External citations — patches, advisories, analysis.

https://gitlab.com/wireshark/wireshark/-/work_items/21439ExploitMitigationVendor Advisory
https://gitlab.com/wireshark/wireshark/-/work_items/21446ExploitMitigationVendor Advisory
https://www.wireshark.org/security/wnpa-sec-2026-75.htmlVendor Advisory

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan