TI-2021-03057 Aliases CVE-2021-4190 GHSA-pmc4-9968-jrp7

Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet…

LOW 39CWE-834Published 2021-12-30 · Updated 2025-11-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

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

Why it matters now

EPSS 0.03332 88th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Will not fix Red Hat: no fix planned

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Wireshark Foundation	Wireshark	=3.6.0	—	No fix listed	CNA

Wireshark VendorWireshark Foundation Affected =3.6.0 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:wireshark:wireshark::::::::	3.4.0 to before 3.4.12	Vulnerable	Wireshark Foundation
cpe:2.3:a:wireshark:wireshark:3.6.0:::::::*	3.6.0	Vulnerable	Wireshark Foundation
cpe:2.3:o:fedoraproject:fedora:34:::::::*	34	Vulnerable	Fedoraproject
cpe:2.3:o:fedoraproject:fedora:35:::::::*	35	Vulnerable	Fedoraproject

cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* Versions 3.4.0 to before 3.4.12 Vulnerable ·Wireshark Foundation
cpe:2.3:a:wireshark:wireshark:3.6.0:*:*:*:*:*:*:* Versions 3.6.0 Vulnerable ·Wireshark Foundation
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2021-12-30
Wireshark — FEDORA-2022-30411cb3c4
7 records Highest priority Priority MEDIUM 3 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2021-03052 Infinite loop in WiresharkPriority MEDIUM 40
- TI-2021-03051 Infinite loop in WiresharkPriority MEDIUM 40
- TI-2021-03048 Out-of-bounds read in WiresharkPriority MEDIUM 40
Show all 7 records → Advisory →
Advisory · 2021-12-30
Wireshark — FEDORA-2022-1daf93c51d
7 records Highest priority Priority MEDIUM 3 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2021-03052 Infinite loop in WiresharkPriority MEDIUM 40
- TI-2021-03051 Infinite loop in WiresharkPriority MEDIUM 40
- TI-2021-03048 Out-of-bounds read in WiresharkPriority MEDIUM 40
Show all 7 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 9	Affected	No fix planned: Will not fix

Not affected: 3 products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8

Timeline

2026-10-02 Threatist record created from CVE-2021-4190
2026-10-03 Alias added: GHSA-pmc4-9968-jrp7

References

Exploit 1

https://gitlab.com/wireshark/wireshark/-/issues/17811

Advisory 5

TI-2026-53718 Heap-based Buffer Overflow in Wireshark CVSS 3.1CRITICAL 9.8
TI-2026-63612 Heap-based Buffer Overflow in Wireshark CVSS 3.1HIGH 8.8
TI-2024-16149 A buffer overflow in Wireshark before 4.2.0 allows a remote attacker to cause a denial of… CVSS 3.1HIGH 7.5
TI-2010-00291 Multiple buffer overflows in the LWRES dissector in Wireshark 0.9.15 through 1.0.10 and… CVSS 2.0HIGH 7.5
TI-2026-63614 Heap-based Buffer Overflow in Wireshark CVSS 3.1HIGH 8.1
TI-2014-01823 Buffer overflow in the mpeg_read function in wiretap/mpeg.c in the MPEG parser in… CVSS 2.0HIGH 9.3

See all 794 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences