Critical severity · published Aug 15, 2026
CVE-2026-74570
ntfs: harden runlist realloc size calculations
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
ntfs: harden runlist realloc size calculations
Add a shared helper to safely convert runlist element counts to byte sizes
using overflow checks, and use it in both ntfs_rl_realloc() and
ntfs_rl_realloc_nofail().
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
11ccc9107dc460de28af90fac1f42404d9802735 before 57e7b8bf7b02a0140463fea786e5172cbdf2da2f; 11ccc9107dc460de28af90fac1f42404d9802735 before 8bed376124ab4505b70083a2b91f2c7ef6d51e24; 7.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74570
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-74570
git.kernel.org
https://git.kernel.org/stable/c/57e7b8bf7b02a0140463fea786e5172cbdf2da2f
git.kernel.org
https://git.kernel.org/stable/c/8bed376124ab4505b70083a2b91f2c7ef6d51e24
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