CVE-2021-22222
HIGH
7.5
CVSS Score
Published: June 7, 2021 at 12:01 PM UTC
Updated: June 17, 2026 at 03:36 AM UTC
5 products affected across 3 vendorsDebian LinuxWiresharkZfs Storage Appliance Kit
Using Wireshark by The Wireshark Foundation?
Get instant alerts when new vulnerabilities affect Wireshark - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
Infinite loop in DVB-S2-BB dissector in Wireshark 3.4.0 to 3.4.5 allows denial of service via packet injection or crafted capture file
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 3.4.63.4.0 ≤ v ≤ 3.4.5
Affected range stops below 3.4.6, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22222.jsonx_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/merge_requests/3130Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202107-21Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-5019x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuoct2021.htmlx_refsource_MISCVendor Advisory
Source: [email protected]
https://www.wireshark.org/security/wnpa-sec-2021-05.htmlCVSS
7.5HIGHGitLab
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-835
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card