CVE-2023-6546

highpriority · track · 38EPSS 0.007 · 54 %ileexploit · PoCDEEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.73% (54th) EPSS

CVSS 7 · high

Is it mine?

87 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-22

A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.

cvss

Technical severity, 0–10. One row per scoring source.

7.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1 · impact 5.9

v3.17highAV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 1 · impact 5.9

v3.16.6mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USCWE-362USCWE-366USCWE-367USCWE-416US

exploits (1)

Public proof-of-concept and weaponised exploit code.

harithlab/CVE-2023-6546harithlab/CVE-2023-6546PoC · poc_in_github

affected products (87)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Atlassian Bitbucket <10.0.2all versionscert_bundDE
Atlassian Bitbucket <8.19.25 (LTS)all versionscert_bundDE
Atlassian Bitbucket <9.4.13 (LTS)all versionscert_bundDE
Dell ECS 3.8.1.0-3.8.1.7all versionscert_bundDEcpe:/h:dell:ecs:3.8.1.0_-_3.8.1.7
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux 9all versionscert_bundDEcpe:/o:redhat:enterprise_linux:9
Red Hat Enterprise Linux Advanced Cluster Security for Kubernetes 4all versionscert_bundDEcpe:/o:redhat:enterprise_linux:advanced_cluster_security_for_kubernetes_4
Red Hat OpenShiftall versionscert_bundDEcpe:/a:redhat:openshift:-
Red Hat OpenShift CodeReady Workspacesall versionscert_bundDEcpe:/a:redhat:openshift:codeready_workspaces
Red Hat OpenShift Container Platform <4.12.72all versionscert_bundDE
Red Hat OpenShift Container Platform <4.14.38all versionscert_bundDE
Red Hat OpenShift Container Platform <4.16.8all versionscert_bundDE
Red Hat OpenShift Custom Metric Autoscaler 2all versionscert_bundDEcpe:/a:redhat:openshift:custom_metric_autoscaler_2
Red Hat OpenShift Data Foundation <4.14.13all versionscert_bundDE
Red Hat OpenShift GitOps 1.12all versionscert_bundDEcpe:/a:redhat:openshift:gitops_1.12
Red Hat OpenShift GitOps <1.15.2all versionscert_bundDE
Red Hat OpenShift Kube Descheduler Operator 5all versionscert_bundDEcpe:/a:redhat:openshift:kube_descheduler_operator_5
Red Hat OpenShift Migration Toolkit for Applications <7.0.3all versionscert_bundDE

showing 20 of 87

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-3201Linux Kernel: Mehrere SchwachstellenDeutsch2023-12-21csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um seine Privilegien zu erhöhen oder einen Denial of Service zu verursachen.
WID-SEC-W-2024-1086IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2024-05-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Dateien zu manipulieren, seine Privilegien zu erweitern, einen Cross-Site-Scripting (XSS)-Angriff durchzuführen oder einen nicht spezifizierten Angriff auszuführen.
WID-SEC-W-2024-1226Red Hat OpenShift: Mehrere SchwachstellenDeutsch2024-05-22csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um Dateien zu manipulieren, einen Denial-of-Service-Zustand zu verursachen, beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, seine Privilegien zu erweitern oder um weitere nicht spezifizierte Angriffe auszuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2023-12-21modified 2026-08-06

references (62)

External citations — patches, advisories, analysis.

scry

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