Search/CVE-2026-6533
● CVE — Medium

CVE-2026-6533

VendorwiresharkProductwiresharkDiscoveredApr 30, 2026UpdatedOct 26, 2026

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

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CVSS v3.1
5.5 MEDIUM
EPSS
0.15%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Sep 25, 2026 → Oct 26, 2026
▼ 0.02pp
0.17% → 0.15% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionREQUIRED
ScopeUNCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityHIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Connections
2 relationships
Timeline
disclosure → media coverage
Apr 30, 2026
Disclosure — published as a CVE record. · last revised by NVD Oct 26, 2026