What is RHSA-2026:9666?

RHSA-2026:9666 is a security advisory published by Red Hat Product Security with Medium severity. Red Hat Security Advisory: wireshark security update

Which CVE IDs does RHSA-2026:9666 cover?

RHSA-2026:9666 covers the following CVE IDs: CVE-2026-3201, CVE-2026-3203. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:9666?

RHSA-2026:9666 has a CVSS v3 base score of 5.5, published by Red Hat Product Security.

RHSA-2026:9666MediumCVSS 5.5

Red Hat Security Advisory: wireshark security update

Vendor

Red Hat Product Security

Published

April 22, 2026

Last Modified

June 25, 2026

🔗 CVE IDs covered (2)

CVE-2026-3201 →CVE-2026-3203 →

📋 Description

CVE-2026-3201 — wireshark: Improperly Controlled Sequential Memory Allocation in Wireshark CVE-2026-3203 — wireshark: Buffer Over-read in Wireshark

🔗 References (5)

selfhttps://access.redhat.com/errata/RHSA-2026:9666
externalhttps://access.redhat.com/security/updates/classification/#moderate
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2442639
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2442641
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_9666.json