RHSA-2026:54185 Red Hat Firefox Security Advisory with Multiple CVEs

Vulnerability Overview Vulnerability Name: RHSA-2026:54185 - Security Advisory Release Date: 2026-08-12 Update Date: 2026-08-12 Vulnerability Type: Security Update Vulnerability Description: Mozilla Firefox is an open-source web browser designed to provide standards compatibility, performance, and portability. This update addresses multiple security vulnerabilities, including heap buffer overflows, memory safety errors, information leaks, and more. Scope of Impact Affected Products: - Red Hat Enterprise Linux Server - AUS 9.2 x86_64 - Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 ppc64le - Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 x86_64 - Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 aarch64 - Red Hat Enterprise Linux for IBM Z Systems - 4 years of updates 9.2 s390x - Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.2 x86_64 - Red Hat Enterprise Linux for IBM Z Systems - Extended Life Cycle 9.2 s390x Remediation Solution: For details on how to apply this update, including the changes described in this advisory, please refer to: https://access.redhat.com/articles/11758 Vulnerability Details CVE-2026-15718: Heap Buffer Overflow CVE-2026-15719: Invalid Pointer CVE-2026-16350: Memory Safety Error CVE-2026-16351: Memory Safety Error CVE-2026-16352: Memory Safety Error CVE-2026-16353: Memory Safety Error CVE-2026-16354: Memory Safety Error CVE-2026-16355: Memory Safety Error CVE-2026-16356: Memory Safety Error CVE-2026-16357: Memory Safety Error CVE-2026-16358: Memory Safety Error CVE-2026-16359: Memory Safety Error CVE-2026-16360: Memory Safety Error CVE-2026-16361: Memory Safety Error CVE-2026-16362: Memory Safety Error CVE-2026-16363: Memory Safety Error CVE-2026-16364: Memory Safety Error CVE-2026-16365: Memory Safety Error CVE-2026-16366: Memory Safety Error CVE-2026-16367: Memory Safety Error CVE-2026-16368: Memory Safety Error CVE-2026-16369: Memory Safety Error CVE-2026-16370: Memory Safety Error CVE-2026-16371: Memory Safety Error CVE-2026-16372: Memory Safety Error CVE-2026-16373: Memory Safety Error CVE-2026-16374: Memory Safety Error CVE-2026-16375: Memory Safety Error CVE-2026-16376: Memory Safety Error CVE-2026-16377: Memory Safety Error CVE-2026-16378: Memory Safety Error CVE-2026-16379: Memory Safety Error CVE-2026-16380: Memory Safety Error CVE-2026-16381: Memory Safety Error CVE-2026-16382: Memory Safety Error CVE-2026-16383: Memory Safety Error CVE-2026-16384: Memory Safety Error CVE-2026-16385: Memory Safety Error CVE-2026-16386: Memory Safety Error CVE-2026-16387: Memory Safety Error CVE-2026-16388: Memory Safety Error CVE-2026-16389: Memory Safety Error CVE-2026-16390: Memory Safety Error CVE-2026-16391: Memory Safety Error CVE-2026-16392: Memory Safety Error CVE-2026-16393: Memory Safety Error CVE-2026-16394: Memory Safety Error CVE-2026-16395: Memory Safety Error CVE-2026-16396: Memory Safety Error CVE-2026-16397: Memory Safety Error CVE-2026-16398: Memory Safety Error CVE-2026-16399: Memory Safety Error CVE-2026-16400: Memory Safety Error CVE-2026-16401: Memory Safety Error CVE-2026-16402: Memory Safety Error CVE-2026-16403: Memory Safety Error CVE-2026-16404: Memory Safety Error CVE-2026-16405: Memory Safety Error CVE-2026-16406: Memory Safety Error CVE-2026-16407: Memory Safety Error CVE-2026-16408: Memory Safety Error CVE-2026-16409: Memory Safety Error CVE-2026-16410: Memory Safety Error CVE-2026-16411: Memory Safety Error CVE-2026-16412: Memory Safety Error CVE-2026-16413: Memory Safety Error CVE-2026-16414: Memory Safety Error CVE-2026-16415: Memory Safety Error CVE-2026-16416: Memory Safety Error CVE-2026-16417: Memory Safety Error CVE-2026-16418: Memory Safety Error CVE-2026-16419: Memory Safety Error CVE-2026-16420: Memory Safety Error CVE-2026-16421: Memory Safety Error CVE-2026-16422: Memory Safety Error CVE-2026-16423: Memory Safety Error CVE-2026-16424: Memory Safety Error CVE-2026-16425: Memory Safety Error CVE-2026-16426: Memory Safety Error CVE-2026-16427: Memory Safety Error CVE-2026-16428: Memory Safety Error CVE-2026-16429: Memory Safety Error CVE-2026-16430: Memory Safety Error CVE-2026-16431: Memory Safety Error CVE-2026-16432: Memory Safety Error CVE-2026-16433: Memory Safety Error CVE-2026-16434: Memory Safety Error CVE-2026-16435: Memory Safety Error CVE-2026-16436: Memory Safety Error CVE-2026-16437: Memory Safety Error CVE-2026-16438: Memory Safety Error CVE-2026-16439: Memory Safety Error CVE-2026-16440: Memory Safety Error CVE-2026-16441: Memory Safety Error CVE-2026-16442: Memory Safety Error CVE-2026-16443: Memory Safety Error CVE-2026-16444: Memory Safety Error CVE-2026-16445: Memory Safety Error CVE-2026-16446: Memory Safety Error CVE-2026-16447: Memory Safety Error CVE-2026-16448: Memory Safety Error CVE-2026-16449: Memory Safety Error CVE-2026-16450: Memory Safety Error CVE-2026-16451: Memory Safety Error CVE-2026-16452: Memory Safety Error CVE-2026-16453:

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RHSA-2026:54185 Red Hat Firefox Security Advisory with Multiple CVEs

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