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Review reviewHigh

CVE-2026-46328

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix rlimit for posix cpu timers Posix cpu timers requires an additional step beyond setting the rlimit. Refactor the code so its clear when what code is setting the limit and conditionally update the posix cpu timers when appropriate.

CVSS
7.3
EPSS
0.11%
1.75% percentile
CISA KEV
Not listed
Published
2026.06.09
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.11%
Technical severityCVSS 7.3

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix rlimit for posix cpu timers Posix cpu timers requires an additional step beyond setting the rlimit. Refactor the code so its clear when what code is setting the limit and conditionally update the posix cpu timers when appropriate.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= baa73d9e478ff32d62f3f9422822b59dd9a95a21 < e1cc11550b2f66687a374536c9dfdddcefca0efe, >= baa73d9e478ff32d62f3f9422822b59dd9a95a21 < 2232d7cd243833ad750cae656d1817fe43744a09, >= baa73d9e478ff32d62f3f9422822b59dd9a95a21 < 28aa93fcfb33b6d580c5df4ae8b6d13fb0e6fcd3, >= baa73d9e478ff32d62f3f9422822b59dd9a95a21 < 1f736dfe27c857b78f8461cd7c3dd9640be74b37, >= baa73d9e478ff32d62f3f9422822b59dd9a95a21 < e43818b16815c0c2bf933ef28316f8e704e5e0ef, >= baa73d9e478ff32d62f3f9422822b59dd9a95a21 < 9bf1fa150775b0c6b794e4b6a2c0395e13777999, >= baa73d9e478ff32d62f3f9422822b59dd9a95a21 < 57d51d41b90eface809b72e0e009b50546492f1f, >= baa73d9e478ff32d62f3f9422822b59dd9a95a21 < 6ca56813f4a589f536adceb42882855d91fb1125, >= 4.10, >= 4.10 < 5.10.252, >= 5.11 < 5.15.202, >= 5.16 < 6.1.165, >= 6.2 < 6.6.128, >= 6.7 < 6.12.75, >= 6.13 < 6.18.14, >= 6.19 < 6.19.4
Fixed versions
5.10.252, 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
CWE
Not available