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Description

Z39.50 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service

PUBLISHED Reserved 2026-07-08 | Published 2026-07-08 | Updated 2026-07-09 | Assigner GitLab




MEDIUM: 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Problem types

CWE-122: Heap-based Buffer Overflow

Product status

Default status
unaffected

4.6.0 (semver) before 4.6.7
affected

4.4.0 (semver) before 4.4.17
affected

Credits

Claude and Ada Logics finder

References

gitlab.com/wireshark/wireshark/-/work_items/21397 exploit

www.wireshark.org/security/wnpa-sec-2026-58.html

gitlab.com/wireshark/wireshark/-/work_items/21397

cve.org (CVE-2026-15170)

nvd.nist.gov (CVE-2026-15170)

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