RHSA-2026:26182HighCVSS 7.8

Red Hat Security Advisory: wireshark security update

Published
June 16, 2026
Last Modified
November 5, 2026

🔗 CVE IDs covered (4)

CVE-2026-3201 →CVE-2026-3203 →CVE-2026-5405 →CVE-2026-5656 →

📋 Description

CVE-2026-3201 — wireshark: Improperly Controlled Sequential Memory Allocation in Wireshark CVE-2026-3203 — wireshark: Buffer Over-read in Wireshark CVE-2026-5405 — wireshark: Heap-based Buffer Overflow in Wireshark CVE-2026-5656 — wireshark: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Wireshark

🎯 Affected products39

  • Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-1:4.4.2-3.el10_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-1:4.4.2-3.el10_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-1:4.4.2-3.el10_0.4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-1:4.4.2-3.el10_0.4.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-1:4.4.2-3.el10_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-1:4.4.2-3.el10_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-1:4.4.2-3.el10_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-1:4.4.2-3.el10_0.4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-1:4.4.2-3.el10_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-debuginfo-1:4.4.2-3.el10_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-debuginfo-1:4.4.2-3.el10_0.4.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-cli-debuginfo-1:4.4.2-3.el10_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-debuginfo-1:4.4.2-3.el10_0.4.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-cli-debuginfo-1:4.4.2-3.el10_0.4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-debuginfo-1:4.4.2-3.el10_0.4.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-cli-debuginfo-1:4.4.2-3.el10_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-cli-debuginfo-1:4.4.2-3.el10_0.4.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-debuginfo-1:4.4.2-3.el10_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-debuginfo-1:4.4.2-3.el10_0.4.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-debuginfo-1:4.4.2-3.el10_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-debuginfo-1:4.4.2-3.el10_0.4.ppc64le as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-debuginfo-1:4.4.2-3.el10_0.4.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-debuginfo-1:4.4.2-3.el10_0.4.s390x as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-debuginfo-1:4.4.2-3.el10_0.4.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-debuginfo-1:4.4.2-3.el10_0.4.x86_64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-debugsource-1:4.4.2-3.el10_0.4.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • wireshark-debugsource-1:4.4.2-3.el10_0.4.aarch64 as a component of Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)
  • wireshark-debugsource-1:4.4.2-3.el10_0.4.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0)
  • +9 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: If the USB HID 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 Workaround: If the RF4CE Profile 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 Workaround: If the RDP 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 Workaround: To mitigate this flaw, do not import configuration profiles from untrusted or unverified sources.

🔗 References (7)