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CVE-2026-93243: Linux 5.14
CVE-2026-93243 affects azl3 kernel 6.6.157.1-1 on Azure Linux 3.0. CVSS 3.1 base score 5.5 (Microsoft Security Response Center). EPSS 0.00229 (percentile 0.12726), scored 14-Oct-2026.
Affected technology
Linux · 1507f51255c9ff07d75909a84e7c0d7f3c4b2f49 to before a41c95ac90f285cbe473b9606428b14518896ea4, 1507f51255c9ff07d75909a84e7c0d7f3c4b2f49 to before 853043cb129473ff2fa0090602be944d96b9d5c9, 1507f51255c9ff07d75909a84e7c0d7f3c4b2f49 to before 3b4f72bdddff69819d665395376329ef21f37a06, 1507f51255c9ff07d75909a84e7c0d7f3c4b2f49 to before 97d34aa65c29cca85e3e9050f4c936389b38a054
Linux
Linux · 5.14
Linux
Component: Not specified by the source
File: include/linux/sched/user.h, mm/secretmem.c, tools/testing/selftests/mm/memfd_secret.c
Attack conditions (Microsoft Security Response Center, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
A user can therefore easily work around the RLIMIT_MEMLOCK limit - simply map then unmap and VmLck no longer counts the secretmem range. Microsoft Security Response Center’s CVSS 3.1 assessment rates confidentiality and integrity impact as none; availability impact as high.
- Product
- azl3 kernel 6.6.157.1-1 on Azure Linux 3.0
- CCR priority
- 22.1 /100 (P4)
- CVSS 3.1
- 5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · Microsoft Security Response Center
- EPSS
- 0.00229 · percentile 0.12726 · 2026-10-14
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-15 09:24:28.011626+00:00 UTC
- GitHub Advisory Database · Source record · observed 2026-10-15 12:39:55.759815+00:00 UTC
- Microsoft MSRC Security Update Guide (CVRF) · Source record · observed 2026-10-04 07:08:49.022374+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-15 11:57:11.427822+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-93243.html