CVE-2024-33862

highpriority · track · 0EPSS 0.006 · 46 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.56% (46th) EPSS
CVSS 7.5 · high
Is it mine?
6 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · osv · phoenix_contact_psirt

EPSS · scored 2026-10-27

A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedphoenix_contact_psirt

    Phoenix Contact recommends affected users to update to the current PLCnext Engineer 2024.0.4 LTS or 2024.6 which fixes the vulnerabilities.

02

cvss

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

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Phoenix Contact PSIRT DE
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USCWE-770USCWE-770US
05

affected products (6)

Products and version ranges known to be affected.

06

advisories (3)

Vendor and ecosystem advisories describing this.

  • VDE-2024-067Phoenix Contact: Multiple Vulnerabilities in PLCnext Engineer2024-10-08csaf · phoenix_contact_psirtDE

    Vulnerabilities in .NET and Visual Studio functions System.Text.Json, System.Formats.Asn1, OPCFoundation.NetStandard.Opc.Ua.Core allow an remote attacker to execute a Denial-of-Servce attack.

  • WID-SEC-W-2024-1517OPC Foundation OPC Core Components: Schwachstelle ermöglicht Denial of ServiceDeutsch2024-07-03csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann eine Schwachstelle in OPC Foundation OPC Core Components ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • GHSA-4q2p-hwmr-qcxcOPCFoundation.NetStandard.Opc.Ua.Core buffer-management vulnerability2024-07-06ghsa · osvUS

    A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.5.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdosvphoenix_contact_psirtcert_bundNVDCVE.orgMITRE
published 2024-07-05modified 2026-06-17
09

references (5)

External citations — patches, advisories, analysis.

scry

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