High [CVE-2026-95389] Heap-based Buffer Overflow in Wireshark
This high-severity Red Hat Linux advisory covers CVE-2026-95389; related products: Red Hat Enterprise Linux 10, Red Hat package: wireshark.
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Summary
Heap-based Buffer Overflow in Wireshark. Red Hat rates this important (CVSS 7.8).
Weakness: CWE-122.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat package: wireshark.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
Mitigation checklist
- If the SCTP protocol dissector is not being used, it can be disabled via the "Enabled Protocols" dialog box in the Wireshark GUI application. This will also disable the protocol dissector when using "tshark", the command line tool. See the links below for instructions to disable a protocol in Wireshark, specifically the "Control Protocol Dissection" section and the "disabled_protos" configuration file option. https://www.wireshark.org/docs/wsug_html_chunked/ChCustProtocolDissectionSection.html https://www.wireshark.org/docs/wsug_html_chunked/ChAppFilesConfigurationSection.html
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
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