CVE-2020-26422
MEDIUM
5.3
CVSS Score
Published: December 21, 2020 at 05:15 PM UTC
Updated: June 17, 2026 at 03:08 AM UTC
2 products affected across 2 vendorsWiresharkZfs Storage Appliance Kit
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Severity
MEDIUM5.3
Exploit prediction
EPSS 5%
Description
Buffer overflow in QUIC dissector in Wireshark 3.4.0 to 3.4.1 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.
Affected range stops below 3.4.2, 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 (5)
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.jsonx_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/issues/17073Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202101-12x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuApr2021.htmlx_refsource_MISCVendor Advisory
Source: [email protected]
https://www.wireshark.org/security/wnpa-sec-2020-20.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-120
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