high 7.1

CVE-2023-53521 json

scsi: ses: Fix slab-out-of-bounds in ses_intf_remove()

published 2025-10-01 13 mo ago modified 2026-11-05 3 d ago also EUVD-2025-32734

cvss: 7.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 4%
public exploits: 0; none known

In the Linux kernel, the following vulnerability has been resolved:

A fix for:

BUG: KASAN: slab-out-of-bounds in ses_intf_remove+0x23f/0x270 [ses] Read of size 8 at addr ffff88a10d32e5d8 by task rmmod/12013

When edev->components is zero, accessing edev->component[0] members is wrong.

Patch / fix

fixed in 1 distros 4 links 8

Linux Linux 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3, 6.3

debian ubuntu red hat suse

linux Debian 14, Debian 13, Debian 12 6.1.20-1

debian advisories DEBIAN-CVE-2023-53521

linux Ubuntu 20.04 LTS 5.4.0-152.169
linux Ubuntu 22.04 LTS 5.15.0-75.82
linux-aws Ubuntu 20.04 LTS 5.4.0-1104.112
linux-aws Ubuntu 22.04 LTS 5.15.0-1038.43
linux-gcp Ubuntu 20.04 LTS 5.4.0-1107.116
linux-gcp Ubuntu 22.04 LTS 5.15.0-1036.44
linux-gke Ubuntu 22.04 LTS 5.15.0-1036.41
linux-ibm Ubuntu 20.04 LTS 5.4.0-1051.56

ubuntu advisories UBUNTU-CVE-2023-53521

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 8 4.18.0-513.5.1.el8_9
perf RHEL 8 4.18.0-513.5.1.el8_9
bpftool RHEL 8 4.18.0-513.5.1.el8_9
kernel-core RHEL 8 4.18.0-513.5.1.el8_9
kernel-tools RHEL 8 4.18.0-513.5.1.el8_9
python3-perf RHEL 8 4.18.0-513.5.1.el8_9
kernel-modules RHEL 8 4.18.0-513.5.1.el8_9
kernel-zfcpdump RHEL 8 4.18.0-513.5.1.el8_9

red hat advisories RHBA-2025:0725 RHSA-2024:10772 RHSA-2023:7077 RHSA-2023:6583

kernel-rt SLE Micro 5.5 5.14.21-150500.13.109.1
kernel-source-rt SLE Micro 5.5 5.14.21-150500.13.109.1
kernel-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.133.1
kernel-source-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.133.1
kernel-64kb SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS, SLE High Performance Computing 15 SP4-ESPOS 5.14.21-150400.24.179.1
kernel-syms SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 5.14.21-150400.24.179.1
kernel-source SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 5.14.21-150400.24.179.1
kernel-default SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Micro 5.4 +7 more 5.14.21-150400.24.179.1

suse advisories SUSE-SU-2025:3761-1 SUSE-SU-2025:3716-1 SUSE-SU-2025:03628-1 SUSE-SU-2025:03615-1 SUSE-SU-2025:03614-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-53521 updated 2026-11-05 cvss 4.1

kernel: scsi: ses: Fix slab-out-of-bounds in ses_intf_remove()

Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
affected: no fix planned “Out of support scope”
Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +6 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
affected: no fix available “Fix deferred”
Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-513.5.1.el8_9, kernel-debuginfo-common-aarch64 4.18.0-513.5.1.el8_9, kernel-debuginfo-common-ppc64le 4.18.0-513.5.1.el8_9
fixed: vendor fix RHSA-2023:7077
Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.95.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.95.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.95.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.95.1.el9_2 Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.95.1.el9_2, rtla 5.14.0-284.95.1.el9_2, kernel-devel-matched 5.14.0-284.95.1.el9_2, kernel-64k-devel-matched 5.14.0-284.95.1.el9_2, kernel-debug-devel-matched 5.14.0-284.95.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.95.1.el9_2, +5 more
fixed: vendor fix RHSA-2024:10772
Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-513.5.1.el8_9, kernel 4.18.0-513.5.1.el8_9, bpftool 4.18.0-513.5.1.el8_9, kernel-core 4.18.0-513.5.1.el8_9, kernel-tools 4.18.0-513.5.1.el8_9, python3-perf 4.18.0-513.5.1.el8_9, +15 more
fixed: vendor fix RHSA-2023:7077
Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.144.1.el8_2, kernel 4.18.0-193.144.1.el8_2, bpftool 4.18.0-193.144.1.el8_2, kernel-core 4.18.0-193.144.1.el8_2, kernel-tools 4.18.0-193.144.1.el8_2, python3-perf 4.18.0-193.144.1.el8_2, +8 more
fixed: vendor fix RHBA-2025:0725
Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.95.1.el9_2, kernel 5.14.0-284.95.1.el9_2, kernel-64k 5.14.0-284.95.1.el9_2, kernel-core 5.14.0-284.95.1.el9_2, kernel-tools 5.14.0-284.95.1.el9_2, python3-perf 5.14.0-284.95.1.el9_2, +28 more
fixed: vendor fix RHSA-2024:10772
Red Hat Enterprise Linux 10 kernel
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 3 d ago (2026-11-05)

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected products

Linux Linux

Classification

Weakness

CWE-125 Out-of-bounds Read

Technology feeds

Linux kernel rss critical rss

References

Sources

CVE List CVE-2023-53521
NVD CVE-2023-53521

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary