CVE-2021-22235

Crash in DNP dissector in Wireshark 3.4.0 to 3.4.6 and 3.2.0 to 3.2.14 allows denial of service via packet injection or crafted capture file

• CWE-835

• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22235.jsonThird Party Advisory
• https://gitlab.com/wireshark/wireshark/-/issues/17462Exploit, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/12/msg00015.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202210-04Third Party Advisory
• https://www.debian.org/security/2021/dsa-5019Mailing List, Third Party Advisory
• https://www.wireshark.org/security/wnpa-sec-2021-05.htmlVendor Advisory
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22235.jsonThird Party Advisory
• https://gitlab.com/wireshark/wireshark/-/issues/17462Exploit, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/12/msg00015.htmlMailing List, Third Party Advisory
• https://security.gentoo.org/glsa/202210-04Third Party Advisory
• https://www.debian.org/security/2021/dsa-5019Mailing List, Third Party Advisory
• https://www.wireshark.org/security/wnpa-sec-2021-05.htmlVendor Advisory

Published

Jul 20, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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