CVE-2026-6536MEDIUM NVDCVSS Score 5.5Severity MEDIUMPublished Apr 30, 2026Vendor unknownDescriptionDLMS/COSEM protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4Referenceshttps://gitlab.com/wireshark/wireshark/-/issues/21065https://www.wireshark.org/security/wnpa-sec-2026-25.html