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Linux Kernel CVE-2026-72208

| EUVDEUVD-2026-58966 CRITICAL
2026-08-15 416baaa9-dc9f-4396-8d5f-8c081fb06d67 GHSA-6v96-8w62-7ppx
Critical
Disputed · 9.8 Vendor: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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Severity by source

Sources disagree (Medium–Critical)
Vendor (416baaa9-dc9f-4396-8d5f-8c081fb06d67) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
7.1 HIGH

Reachable only by parsing an attacker-supplied NTFS volume (local, low-privilege mount/access), so AV:L/PR:L; out-of-bounds read yields memory disclosure (C:H) and possible panic (A:H) but no integrity impact (I:N).

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE
5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Red Hat
5.5 MEDIUM
qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorVendor: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

5
Analysis Generated
Aug 17, 2026 - 07:41 vuln.today
CVSS changed
Aug 17, 2026 - 06:22 NVD
9.8 (CRITICAL)
Patch available
Aug 15, 2026 - 07:20 EUVD
CVE Published
Aug 15, 2026 - 06:21 cve.org
CRITICAL 9.8
CVE Published
Aug 15, 2026 - 06:21 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved:

ntfs: add bounds check before accessing EA entries

in ntfs_ea_lookup and ntfs_listxattr, this verifies that there is enough space in the EA entry before accessing the next_entry_offset field of the EA entry.

AnalysisAI

Out-of-bounds read in the Linux kernel's NTFS driver allows a local attacker to leak adjacent kernel memory or crash the system by parsing extended attribute (EA) entries on a crafted NTFS volume. The ntfs_ea_lookup and ntfs_listxattr routines dereferenced the next_entry_offset field of an EA entry without first verifying that enough space remained in the buffer. No public exploit identified at time of analysis; EPSS is low (0.20%, 10th percentile) and the issue is tagged as Information Disclosure rather than code execution.

Technical ContextAI

The flaw lives in the Linux kernel NTFS filesystem driver, in its handling of on-disk extended attributes. NTFS stores EAs as a chain of variable-length entries, each carrying a next_entry_offset field used to walk to the following entry. In ntfs_ea_lookup (used to resolve a named EA) and ntfs_listxattr (backing the listxattr(2) syscall), the code advanced through this chain and read next_entry_offset without confirming that the current entry's declared size actually fit within the remaining EA buffer. A crafted volume with a truncated or malformed final entry therefore causes a read past the end of the buffer. This is a classic out-of-bounds read / missing-bounds-check bug (CWE-125 class; the record lists CWE as N/A), where untrusted, attacker-controlled on-disk metadata is trusted for length arithmetic before validation.

RemediationAI

Vendor-released patch: upgrade to Linux 7.1.5 (or 7.2-rc1 / later), which add the missing bounds check before dereferencing the EA next_entry_offset field; distribution users should apply the equivalent backported stable-kernel update from their vendor. Apply the fix by taking the stable commits 937282f7d15b593d0be765fa2ced164130ec87f7 and d9d9925de1d8f233cc60d3dc356e12f232f97c15 (https://git.kernel.org/stable/c/937282f7d15b593d0be765fa2ced164130ec87f7). Where patching must be deferred, reduce exposure by preventing untrusted NTFS volumes from being parsed: disable automatic mounting of removable media (for example turn off udisks/GNOME auto-mount), avoid loading or blacklist the NTFS kernel module on systems that do not need it, and restrict who can mount filesystems (avoid user/nosuid mount options for untrusted media) - the trade-off is loss of convenient USB/NTFS interoperability for affected users and workflows.

Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Not-Affected
SUSE Linux Enterprise Desktop 15 SP7 Not-Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Not-Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Not-Affected
SUSE Linux Enterprise High Availability Extension 16.0 Not-Affected

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CVE-2026-72208 vulnerability details – vuln.today

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