What’s Vulnerable › Vulnerabilities

CVE-2020-26422

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-21 · updated 2026-06-17
• Weakness: CWE-120

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 products

• Oracle Corporation Oracle ZFS Storage Appliance Kit: 8.8
• Wireshark Foundation Wireshark: 3.4.0, 3.4.1

References

• https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.json
• https://gitlab.com/wireshark/wireshark/-/issues/17073
• https://security.gentoo.org/glsa/202101-12
• https://www.oracle.com/security-alerts/cpuApr2021.html
• https://www.wireshark.org/security/wnpa-sec-2020-20.html
• https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.json
• https://gitlab.com/wireshark/wireshark/-/issues/17073
• https://security.gentoo.org/glsa/202101-12
• https://www.oracle.com/security-alerts/cpuApr2021.html
• https://www.wireshark.org/security/wnpa-sec-2020-20.html

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