high 7.1

CVE-2023-1652 json

A use-after-free flaw was found in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c in the NFS filesystem in the Linux Kernel.

published 2023-03-29 3 y ago modified 2026-10-14 25 d ago also EUVD-2023-23881

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits: 0; none known

A use-after-free flaw was found in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c in the NFS filesystem in the Linux Kernel. This issue could allow a local attacker to crash the system or it may lead to a kernel information leak problem.

Patch / fix

fixed in 1 distros 5 links 1

Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1

debian ubuntu red hat suse azure linux

linux Debian 14, Debian 13, Debian 12 6.1.11-1

debian advisories DEBIAN-CVE-2023-1652

linux Ubuntu 22.04 LTS 5.15.0-70.77
linux-aws Ubuntu 22.04 LTS 5.15.0-1034.38
linux-gcp Ubuntu 22.04 LTS 5.15.0-1032.40
linux-gke Ubuntu 22.04 LTS 5.15.0-1031.36
linux-ibm Ubuntu 22.04 LTS 5.15.0-1028.31
linux-kvm Ubuntu 22.04 LTS 5.15.0-1031.36
linux-azure Ubuntu 22.04 LTS 5.15.0-1036.43
linux-gkeop Ubuntu 22.04 LTS 5.15.0-1018.23

ubuntu advisories UBUNTU-CVE-2023-1652

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 9 5.14.0-362.8.1.el9_3
rv RHEL 9 5.14.0-362.8.1.el9_3
perf RHEL 9 5.14.0-362.8.1.el9_3
rtla RHEL 9 5.14.0-362.8.1.el9_3
bpftool RHEL 9 7.2.0-362.8.1.el9_3
libperf RHEL 9 5.14.0-362.8.1.el9_3
kernel-rt RHEL 9 5.14.0-362.8.1.el9_3
kernel-64k RHEL 9 5.14.0-362.8.1.el9_3

red hat advisories RHSA-2025:10675 RHSA-2025:10671 RHSA-2025:10193 RHSA-2025:10174 RHSA-2023:6583

kernel-64kb SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS, SLE High Performance Computing 15 SP5-ESPOS 5.14.21-150500.55.100.1
kernel-syms SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.100.1
kernel-source SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.100.1
kernel-default SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +3 more 5.14.21-150500.55.100.1
kernel-obs-build SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.100.1
kernel-default-base SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.100.1.150500.6.47.1
kernel-64kb SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS, SLE High Performance Computing 15 SP4-ESPOS 5.14.21-150400.24.161.1
kernel-syms SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 5.14.21-150400.24.161.1

suse advisories SUSE-SU-2025:1241-1 SUSE-SU-2025:1195-1 SUSE-SU-2025:1183-1 SUSE-SU-2025:1176-1 SUSE-SU-2023:2871-1 SUSE-SU-2023:2809-1

kernel CBL-Mariner 2.0 5.15.107.1-2

azure linux advisories AZL-25962

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

access.redhat.com/security/cve/cve-2023-1652 advisory

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-2023-1652 updated 2026-11-05 cvss 7.8

Kernel: use-after-free in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c

Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
affected: workaround, no fix available
Red Hat CodeReady Linux Builder (v. 9) libperf 5.14.0-362.8.1.el9_3, kernel-debuginfo-common-s390x 5.14.0-362.8.1.el9_3, kernel-debuginfo-common-x86_64 5.14.0-362.8.1.el9_3, kernel-debuginfo-common-aarch64 5.14.0-362.8.1.el9_3, kernel-debuginfo-common-ppc64le 5.14.0-362.8.1.el9_3 Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-362.8.1.el9_3, perf 5.14.0-362.8.1.el9_3, rtla 5.14.0-362.8.1.el9_3, kernel-devel-matched 5.14.0-362.8.1.el9_3, kernel-64k-devel-matched 5.14.0-362.8.1.el9_3, kernel-debug-devel-matched 5.14.0-362.8.1.el9_3, +6 more
fixed: vendor fix RHSA-2023:6583
Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.136.1.el9_0, kernel-devel-matched 5.14.0-70.136.1.el9_0, kernel-debug-devel-matched 5.14.0-70.136.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.136.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.136.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.136.1.el9_0, +2 more
fixed: vendor fix RHSA-2025:10174
Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.124.1.el9_2, rtla 5.14.0-284.124.1.el9_2, kernel-devel-matched 5.14.0-284.124.1.el9_2, kernel-64k-devel-matched 5.14.0-284.124.1.el9_2, kernel-debug-devel-matched 5.14.0-284.124.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.124.1.el9_2, +5 more
fixed: vendor fix RHSA-2025:10671
Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.2.0-362.8.1.el9_3, kernel 5.14.0-362.8.1.el9_3, kernel-64k 5.14.0-362.8.1.el9_3, kernel-core 5.14.0-362.8.1.el9_3, kernel-tools 5.14.0-362.8.1.el9_3, python3-perf 5.14.0-362.8.1.el9_3, +28 more
fixed: vendor fix RHSA-2023:6583
Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.136.1.el9_0, bpftool 5.14.0-70.136.1.el9_0, kernel-core 5.14.0-70.136.1.el9_0, kernel-tools 5.14.0-70.136.1.el9_0, python3-perf 5.14.0-70.136.1.el9_0, kernel-modules 5.14.0-70.136.1.el9_0, +14 more
fixed: vendor fix RHSA-2025:10174
Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.124.1.el9_2, kernel 5.14.0-284.124.1.el9_2, kernel-64k 5.14.0-284.124.1.el9_2, kernel-core 5.14.0-284.124.1.el9_2, kernel-tools 5.14.0-284.124.1.el9_2, python3-perf 5.14.0-284.124.1.el9_2, +28 more
fixed: vendor fix RHSA-2025:10671
Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-kvm 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-core 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-modules 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-debug-kvm 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-debug-core 5.14.0-70.136.1.rt21.208.el9_0, +4 more
fixed: vendor fix RHSA-2025:10193

show 6 more

Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-362.8.1.el9_3, kernel-rt-core 5.14.0-362.8.1.el9_3, kernel-rt-modules 5.14.0-362.8.1.el9_3, kernel-rt-debug-core 5.14.0-362.8.1.el9_3, kernel-rt-modules-core 5.14.0-362.8.1.el9_3, kernel-rt-debug-modules 5.14.0-362.8.1.el9_3, +4 more
fixed: vendor fix RHSA-2023:6583
Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-core 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-modules 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-debug-core 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-debug-modules 5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-modules-extra 5.14.0-70.136.1.rt21.208.el9_0, +2 more
fixed: vendor fix RHSA-2025:10193
Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-core 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-modules 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-debug-core 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-modules-core 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-debug-modules 5.14.0-284.124.1.rt14.409.el9_2, +4 more
fixed: vendor fix RHSA-2025:10675
Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-362.8.1.el9_3, kernel-rt-kvm 5.14.0-362.8.1.el9_3, kernel-rt-core 5.14.0-362.8.1.el9_3, kernel-rt-modules 5.14.0-362.8.1.el9_3, kernel-rt-debug-kvm 5.14.0-362.8.1.el9_3, kernel-rt-debug-core 5.14.0-362.8.1.el9_3, +6 more
fixed: vendor fix RHSA-2023:6583
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-kvm 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-core 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-modules 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-debug-kvm 5.14.0-284.124.1.rt14.409.el9_2, kernel-rt-debug-core 5.14.0-284.124.1.rt14.409.el9_2, +6 more
fixed: vendor fix RHSA-2025:10675
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
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 ICSA-24-102-01 updated 2026-05-14 cvss 6.4

Siemens SIMATIC S7-1500 TM MFP

Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 20 mo ago (2025-02-18)

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

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

n/a Linux Kernel
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Weakness

CWE-416 Use After Free

Technology feeds

Linux kernel rss critical rss

References

access.redhat.com /security/cve/cve-2023-1652
issue-tracking, patch, third-party-advisory
security.netapp.com /advisory/ntap-20230511-0006/
third-party-advisory
cert-portal.siemens.com /productcert/html/ssa-265688.html

Sources

CVE List CVE-2023-1652
NVD CVE-2023-1652

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