CVE-2026-96423
CVE-2026-96423: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2026-96423] Heap-based Buffer Overflow in Wireshark
CVE-2026-96423Source published Source updated
Heap-based Buffer Overflow in Wireshark. Red Hat rates this moderate (CVSS 5.5). Weakness: CWE-787. Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat package: wireshark.
- Related products — impact not confirmed
- Red Hat Enterprise Linux 10
- Red Hat package: wireshark
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- Disable the X11 protocol dissector if analyzing network traffic that does not require X11 packet decoding. For command-line analysis using tshark, disable the protocol at runtime: ``` tshark --disable-protocol x11 -r <capture_file> ``` For persistent user configuration, add the protocol identifier to the disabled protocols file: ``` mkdir -p ~/.config/wireshark echo "x11" >> ~/.config/wireshark/disabled_protos ``` In the Wireshark graphical interface, the dissector can be disabled by navigating to Analyze > Enabled Protocols, searching for "X11", unchecking the protocol entry, and clicking OK. Caveats: Disabling this dissector prevents Wireshark from decoding and analyzing X11 protocol traffic. Running Wireshark sessions must be restarted for configuration file changes to take effect. Additionally, avoid opening capture files obtained from untrusted sources and avoid running packet capture utilities with elevated root privileges.
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