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Full vulnerability report · 2023
CVE-2023-3777High confidence

Use-after-free in Linux kernel's netfilter: nf_tables component

Linux · Kernel

7.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 9 Sept 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-794697 · CSAF 2.0 · revision 9 · interimSiemens ProductCERTSSA-794697: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP before V1.1
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Summary
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.
Remediation
Update to V1.1 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-44410

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.

What

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.

Why

The program can continue using memory after it has been released, producing unsafe and attacker-influenceable behaviour.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
local access → Use After Free → gain additional privileges
Attack surface
Local
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-416 ↗

CWE-416: Use After Free. The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.
Privilege escalationCWE-416
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2023-2217Linux Kernel: Mehrere Schwachstellen

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen oder einen Denial of Service Zustand herbeizuführen.

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0075Multiples vulnérabilités dans le noyau Linux de RedHat

De multiples vulnérabilités ont été découvertes dans le noyau Linux de RedHat . Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et un contournement de la politique de sécurité.

Official advisory
CERT-FR · French · CERTFR-2023-AVI-1036Multiples vulnérabilités dans le noyau Linux de SUSE

-2023:4872-1 du 14 décembre 2023 https://www.suse.com/support/update/announcement/2023/suse-su-20234872-1/ Référence CVE CVE-2023-0461 https://www.cve.org/CVERecord?id=CVE-2023-0461 Référence CVE CVE-2023-1829 https://www.cve.org/CVERecord?id=CVE-2023-1829 Référence CVE CVE-2023-2006 https://www.cve.org/CVERecord?id=CVE-2023-2006 Référence CVE CVE-2023-2163 https://www.cve.org/CVERecord?id=CVE-2023-2163 Référence CVE CVE-2023-25775 https://www.cve.org/CVERecord?id=CVE-2023-25775 Référence CVE CVE-2023-31083 https://www.cve.org/CVERecord?id=CVE-2023-31083 Référence CVE CVE-2023-3610 https://www.cve.org/CVERecord?id=CVE-2023-3610 Référence CVE CVE-2023-3777 https://www.cve.org/CVERecord?id=CVE-2023-3777 Référence CVE CVE-2023-39197 https://www.cve.org/CVERecord?id=CVE-2023-39197 Référence CVE CVE-2023-39198 https://www.cve.org/CVERecord?id=CVE-2023-39198 Référence CVE CVE-2023-4244 https://www.cve.org/CVERecord?id=CVE-2023-4244 Référence CVE CVE-2023-45863 https://www.cve.org/CVERecord?id=CVE-2023-45863 Référence CVE CVE-2023-45871 https://www.cve.org/CVERecord?id=CVE-2023-45871 Référence CVE CVE-2023-4622 https://www.cve.org/CVERecord?id=CVE-2023-4622 Référence CVE CVE-2023-46813 https://www.cve.org/CVERecord?id=CVE-2023-46813 Référence CVE CVE-2023-46862 https://www.cve.org/CVERecord?id=CVE-2

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0988Multiples vulnérabilités dans le noyau Linux d'Ubuntu

CVERecord?id=CVE-2023-25775 Référence CVE CVE-2023-31083 https://www.cve.org/CVERecord?id=CVE-2023-31083 Référence CVE CVE-2023-31085 https://www.cve.org/CVERecord?id=CVE-2023-31085 Référence CVE CVE-2023-31436 https://www.cve.org/CVERecord?id=CVE-2023-31436 Référence CVE CVE-2023-34319 https://www.cve.org/CVERecord?id=CVE-2023-34319 Référence CVE CVE-2023-3567 https://www.cve.org/CVERecord?id=CVE-2023-3567 Référence CVE CVE-2023-3609 https://www.cve.org/CVERecord?id=CVE-2023-3609 Référence CVE CVE-2023-3772 https://www.cve.org/CVERecord?id=CVE-2023-3772 Référence CVE CVE-2023-3776 https://www.cve.org/CVERecord?id=CVE-2023-3776 Référence CVE CVE-2023-3777 https://www.cve.org/CVERecord?id=CVE-2023-3777 Référence CVE CVE-2023-38430 https://www.cve.org/CVERecord?id=CVE-2023-38430 Référence CVE CVE-2023-38432 https://www.cve.org/CVERecord?id=CVE-2023-38432 Référence CVE CVE-2023-3863 https://www.cve.org/CVERecord?id=CVE-2023-3863 Référence CVE CVE-2023-3865 https://www.cve.org/CVERecord?id=CVE-2023-3865 Référence CVE CVE-2023-3866 https://www.cve.org/CVERecord?id=CVE-2023-3866 Référence CVE CVE-2023-3867 https://www.cve.org/CVERecord?id=CVE-2023-3867 Référence CVE CVE-2023-39189 https://www.cve.org/CVERecord?id=CVE-2023-39189 Référence CVE CVE-2023-39192 https://www.cve.org/CVERecord?id=CVE-2023-

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0961Multiples vulnérabilités dans le noyau Linux de SUSE

De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE . Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et une exécution de code arbitraire à distance.

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0925Multiples vulnérabilités dans le noyau Linux de SUSE

cement/2023/suse-su-20234378-1/ Référence CVE CVE-2023-1192 https://www.cve.org/CVERecord?id=CVE-2023-1192 Référence CVE CVE-2023-1206 https://www.cve.org/CVERecord?id=CVE-2023-1206 Référence CVE CVE-2023-1859 https://www.cve.org/CVERecord?id=CVE-2023-1859 Référence CVE CVE-2023-2163 https://www.cve.org/CVERecord?id=CVE-2023-2163 Référence CVE CVE-2023-2177 https://www.cve.org/CVERecord?id=CVE-2023-2177 Référence CVE CVE-2023-31085 https://www.cve.org/CVERecord?id=CVE-2023-31085 Référence CVE CVE-2023-3111 https://www.cve.org/CVERecord?id=CVE-2023-3111 Référence CVE CVE-2023-34324 https://www.cve.org/CVERecord?id=CVE-2023-34324 Référence CVE CVE-2023-3777 https://www.cve.org/CVERecord?id=CVE-2023-3777 Référence CVE CVE-2023-39189 https://www.cve.org/CVERecord?id=CVE-2023-39189 Référence CVE CVE-2023-39191 https://www.cve.org/CVERecord?id=CVE-2023-39191 Référence CVE CVE-2023-39192 https://www.cve.org/CVERecord?id=CVE-2023-39192 Référence CVE CVE-2023-39193 https://www.cve.org/CVERecord?id=CVE-2023-39193 Référence CVE CVE-2023-39194 https://www.cve.org/CVERecord?id=CVE-2023-39194 Référence CVE CVE-2023-4155 https://www.cve.org/CVERecord?id=CVE-2023-4155 Référence CVE CVE-2023-42753 https://www.cve.org/CVERecord?id=CVE-2023-42753 Référence CVE CVE-2023-42754 https://www.cve.org/CVERecord?id=CVE

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0912Multiples vulnérabilités dans le noyau Linux de SUSE

.org/CVERecord?id=CVE-2023-1281 Référence CVE CVE-2023-1829 https://www.cve.org/CVERecord?id=CVE-2023-1829 Référence CVE CVE-2023-1859 https://www.cve.org/CVERecord?id=CVE-2023-1859 Référence CVE CVE-2023-2163 https://www.cve.org/CVERecord?id=CVE-2023-2163 Référence CVE CVE-2023-2860 https://www.cve.org/CVERecord?id=CVE-2023-2860 Référence CVE CVE-2023-31085 https://www.cve.org/CVERecord?id=CVE-2023-31085 Référence CVE CVE-2023-3111 https://www.cve.org/CVERecord?id=CVE-2023-3111 Référence CVE CVE-2023-3390 https://www.cve.org/CVERecord?id=CVE-2023-3390 Référence CVE CVE-2023-34324 https://www.cve.org/CVERecord?id=CVE-2023-34324 Référence CVE CVE-2023-3777 https://www.cve.org/CVERecord?id=CVE-2023-3777 Référence CVE CVE-2023-39189 https://www.cve.org/CVERecord?id=CVE-2023-39189 Référence CVE CVE-2023-39191 https://www.cve.org/CVERecord?id=CVE-2023-39191 Référence CVE CVE-2023-39192 https://www.cve.org/CVERecord?id=CVE-2023-39192 Référence CVE CVE-2023-39193 https://www.cve.org/CVERecord?id=CVE-2023-39193 Référence CVE CVE-2023-39194 https://www.cve.org/CVERecord?id=CVE-2023-39194 Référence CVE CVE-2023-4004 https://www.cve.org/CVERecord?id=CVE-2023-4004 Référence CVE CVE-2023-40283 https://www.cve.org/CVERecord?id=CVE-2023-40283 Référence CVE CVE-2023-4147 https://www.cve.org/CVERecord?id=CVE-

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0844Multiples vulnérabilités dans le noyau Linux d'Ubuntu

De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu . Elles permettent à un attaquant de provoquer une exécution de code arbitraire, une atteinte à la confidentialité des données et un déni de service.

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0775Multiples vulnérabilités dans le noyau Linux d'Ubuntu

e.org/CVERecord?id=CVE-2023-31436 Référence CVE CVE-2023-3212 https://www.cve.org/CVERecord?id=CVE-2023-3212 Référence CVE CVE-2023-3220 https://www.cve.org/CVERecord?id=CVE-2023-3220 Référence CVE CVE-2023-32269 https://www.cve.org/CVERecord?id=CVE-2023-32269 Référence CVE CVE-2023-3390 https://www.cve.org/CVERecord?id=CVE-2023-3390 Référence CVE CVE-2023-3609 https://www.cve.org/CVERecord?id=CVE-2023-3609 Référence CVE CVE-2023-3610 https://www.cve.org/CVERecord?id=CVE-2023-3610 Référence CVE CVE-2023-3611 https://www.cve.org/CVERecord?id=CVE-2023-3611 Référence CVE CVE-2023-3776 https://www.cve.org/CVERecord?id=CVE-2023-3776 Référence CVE CVE-2023-3777 https://www.cve.org/CVERecord?id=CVE-2023-3777 Référence CVE CVE-2023-38426 https://www.cve.org/CVERecord?id=CVE-2023-38426 Référence CVE CVE-2023-38428 https://www.cve.org/CVERecord?id=CVE-2023-38428 Référence CVE CVE-2023-38429 https://www.cve.org/CVERecord?id=CVE-2023-38429 Référence CVE CVE-2023-3863 https://www.cve.org/CVERecord?id=CVE-2023-3863 Référence CVE CVE-2023-3995 https://www.cve.org/CVERecord?id=CVE-2023-3995 Référence CVE CVE-2023-4004 https://www.cve.org/CVERecord?id=CVE-2023-4004 Référence CVE CVE-2023-4015 https://www.cve.org/CVERecord?id=CVE-2023-4015 Référence CVE CVE-2023-40283 https://www.cve.org/CVERecord?id=CVE-2023-

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0752Multiples vulnérabilités dans le noyau Linux de Debian

.org/CVERecord?id=CVE-2023-1989 Référence CVE CVE-2023-20588 https://www.cve.org/CVERecord?id=CVE-2023-20588 Référence CVE CVE-2023-2430 https://www.cve.org/CVERecord?id=CVE-2023-2430 Référence CVE CVE-2023-2898 https://www.cve.org/CVERecord?id=CVE-2023-2898 Référence CVE CVE-2023-34319 https://www.cve.org/CVERecord?id=CVE-2023-34319 Référence CVE CVE-2023-3611 https://www.cve.org/CVERecord?id=CVE-2023-3611 Référence CVE CVE-2023-3772 https://www.cve.org/CVERecord?id=CVE-2023-3772 Référence CVE CVE-2023-3773 https://www.cve.org/CVERecord?id=CVE-2023-3773 Référence CVE CVE-2023-3776 https://www.cve.org/CVERecord?id=CVE-2023-3776 Référence CVE CVE-2023-3777 https://www.cve.org/CVERecord?id=CVE-2023-3777 Référence CVE CVE-2023-3863 https://www.cve.org/CVERecord?id=CVE-2023-3863 Référence CVE CVE-2023-4004 https://www.cve.org/CVERecord?id=CVE-2023-4004 Référence CVE CVE-2023-4015 https://www.cve.org/CVERecord?id=CVE-2023-4015 Référence CVE CVE-2023-40283 https://www.cve.org/CVERecord?id=CVE-2023-40283 Référence CVE CVE-2023-4128 https://www.cve.org/CVERecord?id=CVE-2023-4128 Référence CVE CVE-2023-4132 https://www.cve.org/CVERecord?id=CVE-2023-4132 Référence CVE CVE-2023-4147 https://www.cve.org/CVERecord?id=CVE-2023-4147 Référence CVE CVE-2023-4155 https://www.cve.org/CVERecord?id=CVE-2023-4155

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0726Multiples vulnérabilités dans le noyau Linux d'Ubuntu

CVERecord?id=CVE-2023-35788 Référence CVE CVE-2023-35823 https://www.cve.org/CVERecord?id=CVE-2023-35823 Référence CVE CVE-2023-35824 https://www.cve.org/CVERecord?id=CVE-2023-35824 Référence CVE CVE-2023-35828 https://www.cve.org/CVERecord?id=CVE-2023-35828 Référence CVE CVE-2023-35829 https://www.cve.org/CVERecord?id=CVE-2023-35829 Référence CVE CVE-2023-3609 https://www.cve.org/CVERecord?id=CVE-2023-3609 Référence CVE CVE-2023-3610 https://www.cve.org/CVERecord?id=CVE-2023-3610 Référence CVE CVE-2023-3611 https://www.cve.org/CVERecord?id=CVE-2023-3611 Référence CVE CVE-2023-3776 https://www.cve.org/CVERecord?id=CVE-2023-3776 Référence CVE CVE-2023-3777 https://www.cve.org/CVERecord?id=CVE-2023-3777 Référence CVE CVE-2023-38426 https://www.cve.org/CVERecord?id=CVE-2023-38426 Référence CVE CVE-2023-38428 https://www.cve.org/CVERecord?id=CVE-2023-38428 Référence CVE CVE-2023-38429 https://www.cve.org/CVERecord?id=CVE-2023-38429 Référence CVE CVE-2023-3995 https://www.cve.org/CVERecord?id=CVE-2023-3995 Référence CVE CVE-2023-4004 https://www.cve.org/CVERecord?id=CVE-2023-4004 Référence CVE CVE-2023-4015 https://www.cve.org/CVERecord?id=CVE-2023-4015 Référence CVE CVE-2023-40283 https://www.cve.org/CVERecord?id=CVE-2023-40283 Référence CVE CVE-2023-4128 https://www.cve.org/CVERecord?id=CVE-2023

Official advisory
CERT-FR · French · CERTFR-2023-AVI-0704Multiples vulnérabilités dans le noyau Linux d'Ubuntu

/CVERecord?id=CVE-2023-3567 Référence CVE CVE-2023-35823 https://www.cve.org/CVERecord?id=CVE-2023-35823 Référence CVE CVE-2023-35824 https://www.cve.org/CVERecord?id=CVE-2023-35824 Référence CVE CVE-2023-35828 https://www.cve.org/CVERecord?id=CVE-2023-35828 Référence CVE CVE-2023-35829 https://www.cve.org/CVERecord?id=CVE-2023-35829 Référence CVE CVE-2023-3609 https://www.cve.org/CVERecord?id=CVE-2023-3609 Référence CVE CVE-2023-3610 https://www.cve.org/CVERecord?id=CVE-2023-3610 Référence CVE CVE-2023-3611 https://www.cve.org/CVERecord?id=CVE-2023-3611 Référence CVE CVE-2023-3776 https://www.cve.org/CVERecord?id=CVE-2023-3776 Référence CVE CVE-2023-3777 https://www.cve.org/CVERecord?id=CVE-2023-3777 Référence CVE CVE-2023-3995 https://www.cve.org/CVERecord?id=CVE-2023-3995 Référence CVE CVE-2023-4004 https://www.cve.org/CVERecord?id=CVE-2023-4004 Référence CVE CVE-2023-4015 https://www.cve.org/CVERecord?id=CVE-2023-4015 Gestion détaillée du document le 01 septembre 2023 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des syst

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Update to V1.1 or later version
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 6 Sept 2023 · Last source change 13 Feb 2025, 17:01 UTC · CWE-416 · Use After Free

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-44410
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

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No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2023-44410↗Vendor CSAF · Siemens ProductCERT↗CVE authority or vendor reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-3777 · cve.blacktree.nl