RHSA-2026:97879: Important: wireshark security update

Published Nov 10, 2026
·
Updated

Important: wireshark security update

Other sources

The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network.Security Fix(es): wireshark: Wireshark: Denial of Service via C12.22 protocol dissector crash (CVE-2026-76886) wireshark: Wireshark: Denial of Service via RRC protocol dissector out-of-bounds write (CVE-2026-76880) wireshark: Wireshark: Denial of Service vulnerability in ESS protocol dissector (CVE-2026-76919) wireshark: Wireshark: Denial of Service vulnerability in H.245 protocol dissector (CVE-2026-76927) wireshark: wireshark: Denial of Service via heap-based buffer overflow in SPDY dissector (CVE-2026-95387) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

32 affected componentsFixes available
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for x86_64
redhat/wireshark<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-cli<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-cli<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-cli-debuginfo<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-cli-debuginfo<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-debuginfo<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-debuginfo<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-debugsource<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-debugsource<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-cli<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-cli-debuginfo<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-debuginfo<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-debugsource<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark<3.4.10-14.el9_9.aa
3.4.10-14.el9_9.aa
redhat/wireshark-cli<3.4.10-14.el9_9.aa
3.4.10-14.el9_9.aa
redhat/wireshark-cli-debuginfo<3.4.10-14.el9_9.aa
3.4.10-14.el9_9.aa
redhat/wireshark-debuginfo<3.4.10-14.el9_9.aa
3.4.10-14.el9_9.aa
redhat/wireshark-debugsource<3.4.10-14.el9_9.aa
3.4.10-14.el9_9.aa
redhat/wireshark-devel<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-devel<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-devel<3.4.10-14.el9_9
3.4.10-14.el9_9
redhat/wireshark-devel<3.4.10-14.el9_9.aa
3.4.10-14.el9_9.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/wireshark to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9
  2. Upgrade

    Upgrade redhat/wireshark-cli to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9
  3. Upgrade

    Upgrade redhat/wireshark-cli-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9
  4. Upgrade

    Upgrade redhat/wireshark-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9
  5. Upgrade

    Upgrade redhat/wireshark-debugsource to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9
  6. Upgrade

    Upgrade redhat/wireshark to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9.aa
  7. Upgrade

    Upgrade redhat/wireshark-cli to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9.aa
  8. Upgrade

    Upgrade redhat/wireshark-cli-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9.aa
  9. Upgrade

    Upgrade redhat/wireshark-debuginfo to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9.aa
  10. Upgrade

    Upgrade redhat/wireshark-debugsource to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9.aa
  11. Upgrade

    Upgrade redhat/wireshark-devel to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9
  12. Upgrade

    Upgrade redhat/wireshark-devel to a version that resolves this vulnerability.

    Fixed in 3.4.10-14.el9_9.aa

Event History

Nov 10, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·09:26 PM
Data Sourced
via Red Hat·09:26 PM
Severity

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