Red Hat Security Advisory: linux-firmware security update
Affects Red Hat linux-firmwareSource GCVE Database
Mentioned vulnerabilities
Rated by Threat Radar
Data as of 14 Nov 2026, 17:46 UTC
What to do
AI-suggested
Red Hat has reverted the microcode update in linux-firmware to a stable version and recommends customers using Intel Skylake, Broadwell, and Haswell platforms immediately obtain and install updated microcode from their hardware vendors. Additionally, customers should ensure they have the latest Red Hat kernel updates that include Spectre mitigations. Applying both updated microcode and kernel patches is necessary for effective protection. No further action is indicated from Red Hat until hardware vendor microcode updates are available.
Description
This Red Hat security advisory addresses issues with the linux-firmware package related to microcode updates for mitigating the Spectre CPU vulnerability (CVE-2017-5715). Red Hat found problems with the initially provided microcode update that could cause system instability and has reverted to a previously stable microcode version dated before January 3, 2018. Customers using Intel Skylake, Broadwell, and Haswell platforms are strongly advised to obtain updated microcode directly from their hardware vendors to ensure proper Spectre mitigation alongside updated Red Hat kernels.
References
- access.redhat.com/errata/RHSA-2018:0094 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- access.redhat.com/security/vulnerabilities/speculativeexecution (opens in a new tab)
- access.redhat.com/security/cve/CVE-2017-5715 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=1519780 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2018/rhsa-2018_0094.json (opens in a new tab)