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CVE-2025-40215: Linux 2.6.29
CVE-2025-40215 affects azl3 kernel 6.6.112.1-2 on Azure Linux 3.0. CVSS 3.1 base score 7.8 (HIGH, Source advisory). EPSS 0.00144 (percentile 0.03312), scored 19-Oct-2026.
Affected technology
Linux · 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to before 1b28a7fae0128fa140a7dccd995182ff6cd1c67b, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to before 4b2c17d0f9be8b58bb30468bc81a4b61c985b04e, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to before 0da961fa46da1b37ef868d9b603bd202136f8f8e, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to before d0e0d1097118461463b76562c7ebaabaa5b90b13, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to before dc3636912d41770466543623cb76e7b88fdb42c7, 9d4139c76905833afcb77fe8ccc17f302a0eb9ab to before b441cf3f8c4b8576639d20c8eb4aa32917602ecd
Linux
Linux · 2.6.29
Linux
Component: Not specified by the source
File: include/net/xfrm.h, net/ipv4/ipcomp.c, net/ipv6/ipcomp6.c, net/ipv6/xfrm6_tunnel.c, net/xfrm/xfrm_ipcomp.c, net/xfrm/xfrm_state.c
Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 7.8/10) 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
- 31.2 /100 (P4)
- CVSS 3.1
- 7.8 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00144 · percentile 0.03312 · 2026-10-19
- KEV
- no
Provenance
- FIRST EPSS daily exploit-probability · Source record · observed 2026-10-19 14:17:18.977832+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 2026-10-20 01:44:01.123206+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2025-40215.html