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OpenAdvisories
High ALSA-2026:83546 5 CVEs

Important: wireshark security update

Published Oct 15, 2026 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

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 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.

Fixed packages 3

ReleasePackageFixed in
AlmaLinux · 9 wireshark 1:3.4.10-9.el9_8.5
AlmaLinux · 9 wireshark-cli 1:3.4.10-9.el9_8.5
AlmaLinux · 9 wireshark-devel 1:3.4.10-9.el9_8.5

Vulnerabilities 5

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-76880
  • report
    https://access.redhat.com/security/cve/CVE-2026-76886
  • report
    https://access.redhat.com/security/cve/CVE-2026-76919
  • report
    https://access.redhat.com/security/cve/CVE-2026-76927
  • report
    https://access.redhat.com/security/cve/CVE-2026-95387
  • report
    https://bugzilla.redhat.com/2520079
  • report
    https://bugzilla.redhat.com/2520088
  • report
    https://bugzilla.redhat.com/2520093
  • report
    https://bugzilla.redhat.com/2520103
  • report
    https://bugzilla.redhat.com/2543033
  • advisory
    https://errata.almalinux.org/9/ALSA-2026-83546.html