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Vulnerability · Published Aug 15, 2026 · Assigned by Linux

CVE-2026-72206ntfs: validate index block header more strictly

Critical 9.8

In plain English

A critical-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 53.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: ntfs: validate index block header more strictly Modify ntfs_index_block_inconsisent() to perform stricter validation of INDEX_HEADER geometry in INDX blocks, and update ntfs_lookup_inode_by_name() to use that function to validate INDX blocks.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:14linux7.1.5-1DEBIAN-CVE-2026-72206
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-72206
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-72206
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-72206

Affected products (as reported)

VendorProductVersions
Linux Linux 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 – before 34a49b3e94a50f45b62c6e6f574f676a079ba23e1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 – before 14bc34fe948523dc2b0174691f9af9e74eb4f3fd
Linux Linux 7.1

References