CVE-2021-4190
HIGHCVSS 7.5/10EPSS 3.10%
Last modified
CVE-2021-4190 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file. EPSS estimates a 3.10% chance of exploitation in the next 30 days.
Description
Large loop in the Kafka dissector in Wireshark 3.6.0 allows denial of service via packet injection or crafted capture file
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wireshark | Wireshark | >= 3.4.0, < 3.4.12 |
| Wireshark | Wireshark | 3.6.0 |
| Fedoraproject | Fedora | 34 |
| Fedoraproject | Fedora | 35 |
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4190.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17811Exploit, Issue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202210-04Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-22.htmlVendor Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4190.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17811Exploit, Issue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202210-04Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-22.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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
How severe is CVE-2021-4190?
CVE-2021-4190 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.10% probability of exploitation in the next 30 days.
How do I fix CVE-2021-4190?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-41872Skyworth Digital Technology Penguin Aurora Box 41502 has a d…7.5
- CVE-2021-41873Penguin Aurora TV Box 41502 is a high-end network HD set-top…10
- CVE-2021-41874Rejected reason: DO NOT USE THIS CVE RECORD. ConsultIDs: non…
- CVE-2021-41878A reflected cross-site scripting (XSS) vulnerability exists …6.1
- CVE-2021-4188mruby is vulnerable to NULL Pointer Dereference7.5
- CVE-2021-4189A flaw was found in Python, specifically in the FTP (File Tr…5.3
- CVE-2021-4191An issue has been discovered in GitLab CE/EE affecting versi…5.3
- CVE-2021-41916A Cross-Site Request Forgery (CSRF) vulnerability in webTare…8.8
- CVE-2021-41917webTareas version 2.4 and earlier allows an authenticated us…5.4
- CVE-2021-41918webTareas version 2.4 and earlier allows an authenticated us…5.4
- CVE-2021-41919webTareas version 2.4 and earlier allows an authenticated us…8.8
- CVE-2021-4192vim is vulnerable to Use After Free7.8
Are you affected by CVE-2021-4190?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST