CVE-2021-4182
HIGHCVSS 7.5/10EPSS 3.30%
Last modified
CVE-2021-4182 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Crash in the RFC 7468 dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file. EPSS estimates a 3.30% chance of exploitation in the next 30 days.
Description
Crash in the RFC 7468 dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 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, < 3.4.11 |
| Wireshark | Wireshark | 3.6.0 |
| Fedoraproject | Fedora | 34 |
| Fedoraproject | Fedora | 35 |
| Oracle | Http Server | 12.2.1.3.0 |
| Oracle | Http Server | 12.2.1.4.0 |
| Oracle | Zfs Storage Appliance Kit | 8.8 |
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4182.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17801Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202210-04Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-20.htmlVendor Advisory
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4182.jsonThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/17801Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202210-04Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2021-20.htmlVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-4182?
Crash in the RFC 7468 dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
How severe is CVE-2021-4182?
CVE-2021-4182 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.30% probability of exploitation in the next 30 days.
How do I fix CVE-2021-4182?
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-2021-41809SSRF vulnerability in M-Files Server products with versions …4.3
- CVE-2021-4181Crash in the Sysdig Event dissector in Wireshark 3.6.0 and 3…7.5
- CVE-2021-41810Script injection in M-Files Admin versions before 22.2.11051…4.8
- CVE-2021-41816CGI.escape_html in Ruby before 2.7.5 and 3.x before 3.0.3 ha…9.8
- CVE-2021-41817Date.parse in the date gem through 3.2.0 for Ruby allows ReD…7.5
- CVE-2021-41819CGI::Cookie.parse in Ruby through 2.6.8 mishandles security …7.5
- CVE-2021-41821Wazuh Manager in Wazuh through 4.1.5 is affected by a remote…6.5
- CVE-2021-41823The Web Application Firewall (WAF) in Kemp LoadMaster 7.2.54…6.1
- CVE-2021-41824Craft CMS before 3.7.14 allows CSV injection.8.8
- CVE-2021-41825Verint Workforce Optimization (WFO) 15.2.5.1033 allows HTML …5.3
- CVE-2021-41826PlaceOS Authentication Service before 1.29.10.0 allows app/c…6.1
- CVE-2021-41827Zoho ManageEngine Remote Access Plus before 10.1.2121.1 has …7.5
Are you affected by CVE-2021-4182?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST