Detections
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AlmaLinux 10 : wireshark (ALSA-2026:84721)
critical Nessus Plugin ID 369086
Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:84721 advisory.* 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)
Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected wireshark, wireshark-cli and / or wireshark-devel packages.See Also
Plugin Details
Severity: Critical
ID: 369086
File Name: alma_linux_ALSA-2026-84721.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 10/21/2026
Updated: 10/21/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.41
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.9
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2026-95389
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2026-76886
Vulnerability Information
CPE: cpe:/o:alma:linux:10, cpe:/o:alma:linux:10::appstream, cpe:/o:alma:linux:10::baseos, cpe:/o:alma:linux:10::highavailability, cpe:/o:alma:linux:10::nfv, cpe:/o:alma:linux:10::powertools, cpe:/o:alma:linux:10::realtime, cpe:/o:alma:linux:10::resilientstorage, cpe:/o:alma:linux:10::sap, cpe:/o:alma:linux:10::sap_hana, cpe:/o:alma:linux:10::supplementary, p-cpe:/a:alma:linux:wireshark-cli, p-cpe:/a:alma:linux:wireshark-devel, p-cpe:/a:alma:linux:wireshark
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/19/2026
Vulnerability Publication Date: 10/8/2024
Reference Information
CVE: CVE-2026-76879, CVE-2026-76880, CVE-2026-76886, CVE-2026-76919, CVE-2026-76927, CVE-2026-76928, CVE-2026-95387, CVE-2026-95389