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CVE-2025-40343: Linux 4.8
CVE-2025-40343 affects azl3 kernel 6.6.112.1-2 on Azure Linux 3.0. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00651 (percentile 0.49821), scored 13-Oct-2026.
Affected technology
Linux · a07b4970f464f13640e28e16dad6cfa33647cc99 to before 2f4852db87e25d4e226b25cb6f652fef9504360e, a07b4970f464f13640e28e16dad6cfa33647cc99 to before 85e2ce1920cb511d57aae59f0df6ff85b28bf04d, a07b4970f464f13640e28e16dad6cfa33647cc99 to before 601ed47b2363c24d948d7bac0c23abc8bd459570, a07b4970f464f13640e28e16dad6cfa33647cc99 to before 04d17540ef51e2c291eb863ca87fd332259b2d40, a07b4970f464f13640e28e16dad6cfa33647cc99 to before c09ac9a63fc3aaf4670ad7b5e4f5afd764424154, a07b4970f464f13640e28e16dad6cfa33647cc99 to before f2537be4f8421f6495edfa0bc284d722f253841d
Linux
Linux · 4.8
Linux
Component: Not specified by the source
File: drivers/nvme/target/fc.c
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- Product
- azl3 kernel 6.6.112.1-2 on Azure Linux 3.0
- CCR priority
- 39.4 /100 (P4)
- CVSS 3.1
- 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00651 · percentile 0.49821 · 2026-10-13
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-14 05:24:14.258005+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 01:07:31.726917+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2025-40343.html