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CVE-2026-31557: linux kernel 5.18; +1 more affected products

CVE-2026-31557. CVSS 3.1 base score 7.5 (HIGH, Source advisory). EPSS 0.0063 (percentile 0.49038), scored 15-Oct-2026.

Affected technology

linux kernel · from 5.15.42 (inclusive), before 5.16 (exclusive)
linux

linux kernel · from 5.17.10 (inclusive), before 5.18 (exclusive)
linux

linux kernel · from 5.18.1 (inclusive), before 6.12.80 (exclusive)
linux

linux kernel · from 6.13 (inclusive), before 6.18.21 (exclusive)
linux

linux kernel · from 6.19 (inclusive), before 6.19.11 (exclusive)
linux

linux kernel · 5.18
linux

linux kernel · 7.0 · update rc1
linux

linux kernel · 7.0 · update rc2
linux

linux kernel · 7.0 · update rc3
linux

linux kernel · 7.0 · update rc4
linux

linux kernel · 7.0 · update rc5
linux

linux kernel · 7.0 · update rc6
linux

linux kernel · 7.0 · update rc7
linux

Linux · 8832cf922151e9dfa2821736beb0ae2dd3968b6e to before 49c7c50ee6325a084216e94395e067ecde8088fa, 8832cf922151e9dfa2821736beb0ae2dd3968b6e to before ca111c9d8d6c9d5735878d933a1716c4be86c2d1, 8832cf922151e9dfa2821736beb0ae2dd3968b6e to before 25ceffc1dabec3b93f458b437aae26f4da293f87, 8832cf922151e9dfa2821736beb0ae2dd3968b6e to before 2922e3507f6d5caa7f1d07f145e186fc6f317a4e, d44ff3b100b94e9f23b1e8dbe688eee9bb867ac9, 84026f8c9357c62a9d3e4c554ffd10ccab813654, 5.15.42 to before 5.16, 5.17.10 to before 5.18
Linux

Linux · 5.18
Linux

Component: Not specified by the source
File: drivers/nvme/target/admin-cmd.c, drivers/nvme/target/core.c, drivers/nvme/target/nvmet.h, drivers/nvme/target/rdma.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 7.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published

CCR priority
30.2 /100 (P4)
CVSS 3.1
7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Source advisory
EPSS
0.0063 · percentile 0.49038 · 2026-10-15
KEV
no

Provenance

Stable permalink: https://cybercodered.org/item/cve-cve-2026-31557.html