CVE-2026-6533

Name
CVE-2026-6533
Description
Dissection engine LZ77 decompression crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
cve@gitlab.com https://gitlab.com/wireshark/wireshark/-/issues/21127
cve@gitlab.com https://www.wireshark.org/security/wnpa-sec-2026-28.html
134c704f-9b21-4f2e-91b3-4a467353bcc0 https://gitlab.com/wireshark/wireshark/-/work_items/21127

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* wireshark >= 4.4.0 <= 4.4.14
cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* wireshark >= 4.6.0 <= 4.6.4

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
wireshark edge-community 4.6.4-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.6.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.6.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.6.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.6.0-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.4.9-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.4.8-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.4.7-r1 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.4.7-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.4.6-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.4.4-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.4.3-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark edge-community 4.4.2-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark 3.23-community 4.6.4-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
wireshark 3.23-community 4.6.1-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable