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High RLSA-2026:84721 8 CVEs

Important: wireshark security update

Published Oct 20, 2026 · Updated Oct 20, 2026

Ecosystem: Rocky Linux

Summary

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 via C12.22 protocol dissector crash (CVE-2026-76879)

* wireshark: Wireshark: Denial of Service via X.509IF protocol dissector crash (CVE-2026-76928)

* 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)

* wireshark: Heap-based Buffer Overflow in Wireshark (CVE-2026-95389)

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 10 wireshark 1:4.4.2-10.el10_2.8

Vulnerabilities 8

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2520079
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2520088
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2520093
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2520098
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2520100
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2520103
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2543033
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2543037
  • advisory
    https://access.redhat.com/errata/RHSA-2026:84721