CVE-2021-4190

Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file

CVSS v3.1

7.5 HIGH

EPSS

3.10%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

ScopeUNCHANGED

ConfidentialityNONE

IntegrityNONE

AvailabilityHIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Connections

3 relationships

Timeline

disclosure → media coverage

Dec 30, 2021

Disclosure — published as a CVE record. · last revised by NVD Nov 3, 2025