PT-2026-36073 · Wireshark · Wireshark

Brendan Coles · Published 2026-03-09 · Updated 2026-05-30 · CVE-2026-6536

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Wireshark versions 4.6.0 through 4.6.4

Description A flaw in the DLMS/COSEM protocol dissector can lead to an infinite loop.

Recommendations Update Wireshark to a version later than 4.6.4.

Exploit

Fix

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

BDU:2026-06388

CVE-2026-6536

OPENSUSE-SU-2026:10686-1

Affected Products

Wireshark

References · 57

• 🔥 https://gitlab.com/wireshark/wireshark/-/issues/21065 · Exploit
• 🔥 https://gitlab.com/wireshark/wireshark/-/work_items/21065 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-6536 · Security Note
• https://ubuntu.com/security/CVE-2026-6536 · Vendor Advisory
• https://wireshark.org/security/wnpa-sec-2026-25.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-6536 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-6536 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-6536 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06388 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-6536 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10686-1 · Vendor Advisory
• https://suse.com/security/cve/CVE-2026-6537 · Note
• https://suse.com/security/cve/CVE-2026-5655 · Note
• https://suse.com/security/cve/CVE-2026-7375 · Note
• https://suse.com/security/cve/CVE-2026-6527 · Note