What’s Vulnerable › Vulnerabilities

CVE-2021-22222

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-07 · updated 2026-06-17
• Weakness: CWE-835

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 products

• Debian Linux: 10.0, 11.0
• Oracle Corporation Enterprise Manager Ops Center: 12.4.0.0
• Oracle Instantis Enterprisetrack: 17.1, 17.2, 17.3
• Oracle Corporation Oracle ZFS Storage Appliance Kit: 8.8
• Wireshark Foundation Wireshark: from 3.4.0 through 3.4.5

References

• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22222.json
• https://gitlab.com/wireshark/wireshark/-/merge_requests/3130
• https://security.gentoo.org/glsa/202107-21
• https://www.debian.org/security/2021/dsa-5019
• https://www.oracle.com/security-alerts/cpuoct2021.html
• https://www.wireshark.org/security/wnpa-sec-2021-05.html
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22222.json
• https://gitlab.com/wireshark/wireshark/-/merge_requests/3130
• https://security.gentoo.org/glsa/202107-21
• https://www.debian.org/security/2021/dsa-5019
• https://www.oracle.com/security-alerts/cpuoct2021.html
• https://www.wireshark.org/security/wnpa-sec-2021-05.html

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