CVE-2026-76885: Buffer Over-read in Wireshark
Published Aug 19, 2026
·Updated
Tektronix K12xx file parser crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Affected Software
1 affected component
Wireshark Wireshark>=4.6.0<=4.6.7, >=4.4.0<=4.4.18
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 4.6.8
Event History
Aug 19, 2026
CVE Published
via MITRE·10:46 PM
Data Sourced
via MITRE·10:46 PM
RemedyDescriptionSeverityWeakness
Frequently Asked Questions
1
Does exploitation require authentication or user interaction?
No privileges are required, but user interaction is required. The attack vector is network-based and has high attack complexity.
2
What is the expected security impact?
The reported impact is limited to availability: a crash can cause denial of service. No confidentiality or integrity impact is indicated.