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CVE-2025-39939: linux kernel from 6.15 (inclusive), before 6.16.9 (exclusive), 6.17 · update rc1, 6.17 · update rc2 (+4 more affected…

CVE-2025-39939. CVSS 3.1 base score 7.8 (HIGH, NVD). EPSS 0.00144 (percentile 0.0327), scored 14-Oct-2026.

Affected technology

linux kernel · from 6.15 (inclusive), before 6.16.9 (exclusive)
linux

linux kernel · 6.17 · update rc1
linux

linux kernel · 6.17 · update rc2
linux

linux kernel · 6.17 · update rc3
linux

linux kernel · 6.17 · update rc4
linux

linux kernel · 6.17 · update rc5
linux

linux kernel · 6.17 · update rc6
linux

Linux · 64af12c6ec3afd7d44bc8b2044eee59f98059087 to before 17a58caf3863163c4a84a218a9649be2c8061443, 64af12c6ec3afd7d44bc8b2044eee59f98059087 to before b3506e9bcc777ed6af2ab631c86a9990ed97b474
Linux

Linux · 6.15
Linux

Component: Not specified by the source
File: drivers/iommu/s390-iommu.c

Attack conditions (Source advisory, CVSS 3.1): Local · Low privileges required · No user interaction required

Attack conditions (NVD, 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. NVD’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.

Published

CWE
CWE-787
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 · NVD
EPSS
0.00144 · percentile 0.0327 · 2026-10-14
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2025-39939.html