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Ubuntu Security NoticesUSN-8662-2

USN-8662-2: Linux kernel (FIPS) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - x86 architecture; - Cryptographic API; - InfiniBand drivers; - Media drivers; - STMicroelectronics network drivers; - Network drivers; - Ext4 file system; - IPv4 networking; - TCP network protocol; - Locking primitives; - Ceph Core library; - IPv6 networking; - Multipath TCP; - Netfilter; - SCTP protocol; - SMC sockets; (CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31649, CVE-2026-43198, CVE-2026-43493, CVE-2026-43499, CVE-2026-46266, CVE-2026-52955, CVE-2026-52982, CVE-2026-52986, CVE-2026-53006, CVE-2026-53176, CVE-2026-53225, CVE-2026-53228, CVE-2026-53359)

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Scope

What the vendor says is affected

The collected bulletin did not provide a separate affected-products list. Check the original bulletin before making an exposure decision.

Next step

What the vendor recommends

This update corrects flaws in the following subsystems: - x86 architecture; - Cryptographic API; - InfiniBand drivers; - Media drivers; - STMicroelectronics network drivers; - Network drivers; - Ext4 file system; - IPv4 networking; - TCP network protocol; - Locking primitives; - Ceph Core library; - IPv6 networking; - Multipath TCP; - Netfilter; - SCTP protocol; - SMC sockets; (CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31649, CVE-2026-43198, CVE-2026-43493, CVE-2026-43499, CVE-2026-46266, CVE-2026-52955, CVE-2026-52982, CVE-2026-52986, CVE-2026-53006, CVE-2026-53176, CVE-2026-53225, CVE-2026-53228, CVE-2026-53359)

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Timeline

When this advisory changed

  1. Published by Ubuntu

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-31405View CVSS, KEV, EPSS, and threat contextCVE-2026-31414View CVSS, KEV, EPSS, and threat contextCVE-2026-31448View CVSS, KEV, EPSS, and threat contextCVE-2026-31649View CVSS, KEV, EPSS, and threat contextCVE-2026-43198View CVSS, KEV, EPSS, and threat contextCVE-2026-43493View CVSS, KEV, EPSS, and threat contextCVE-2026-43499View CVSS, KEV, EPSS, and threat contextCVE-2026-46266View CVSS, KEV, EPSS, and threat contextCVE-2026-52955View CVSS, KEV, EPSS, and threat contextCVE-2026-52982View CVSS, KEV, EPSS, and threat contextCVE-2026-52986View CVSS, KEV, EPSS, and threat contextCVE-2026-53006View CVSS, KEV, EPSS, and threat contextCVE-2026-53176View CVSS, KEV, EPSS, and threat contextCVE-2026-53225View CVSS, KEV, EPSS, and threat contextCVE-2026-53228View CVSS, KEV, EPSS, and threat contextCVE-2026-53359View CVSS, KEV, EPSS, and threat context
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