CVE-2021-45117

mediumPriorität · verfolgen · 26EPSS 0.014 · 73. PerzentilDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.42% (73rd) EPSS
CVSS 4.3 · medium
Is it mine?
93 products
Prüfe deine Angriffsfläche
Who says so?
8 sources
cnnvd · enisa_euvd · fstec_bdu · beckhoff_psirt

EPSS · bewertet 2026-10-27

The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

  • BehobenSIMATIC HMI Comfort Outdoor Panels (incl. SIPLUS variants)siemens_psirt

    Update SIMATIC WinCC (TIA Portal) to V17 Update 5 or newer, and then update panel to V17 Update 5 or newer

    https://support.industry.siemens.com/cs/ww/en/view/109746530/
  • BehobenSIMATIC HMI Comfort Panels (incl. SIPLUS variants)siemens_psirt

    Update SIMATIC WinCC (TIA Portal) to V17 Update 5 or newer, and then update panel to V17 Update 5 or newer

    https://support.industry.siemens.com/cs/ww/en/view/109746530/
  • BehobenSIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900Fsiemens_psirt

    Update SIMATIC WinCC (TIA Portal) to V17 Update 5 or newer, and then update panel to V17 Update 5 or newer

    https://support.industry.siemens.com/cs/ww/en/view/109746530/
  • BehobenSIMATIC NET PC Software V14siemens_psirt

    Update to V14 SP1 Update 14 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109807351/
  • BehobenSIMATIC NET PC Software V16siemens_psirt

    Update to V16 Update 6 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109811815/
  • BehobenSIMATIC NET PC Software V17siemens_psirt

    Update to V17 SP1 or later version

  • BehobenSITOP Managersiemens_psirt

    Update to V1.2.4 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109760607/
  • BehobenTeleControl Server Basic V3siemens_psirt

    Update to V3.1.1 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109812231/
  • Behobenbeckhoff_psirt

    Please update to a recent version of the affected product.

  • Behobenphoenix_contact_psirt

    **Update to Firmware Release 2022.0.3 LTS or higher:** - AXC F 2152 (2404267) [Download](http://www.phoenixcontact.net/qr/2404267/firmware) - AXC F 1152 (1151412) [Download](http://www.phoenixcontact.net/qr/1151412/firmware) - AXC F 3152 (1069208) Not yet released **Update to PLCnext Engineer Release 2022.0.1 LTS or higher.**

  • Behobenphoenix_contact_psirt

    Update to the latest LTS Firmware Release.Update to the latest LTS PLCnext Engineer Release.Please check Phoenix Contact PSIRT webpage for further Updates of this Advisory.

  • BehobenSIMATIC HMI Comfort Outdoor Panels (incl. SIPLUS variants)cisa_csaf_ot

    Update SIMATIC WinCC (TIA Portal) to V17 Update 5 or newer, and then update panel to V17 Update 5 or newer

    https://support.industry.siemens.com/cs/ww/en/view/109746530/
  • BehobenSIMATIC HMI Comfort Panels (incl. SIPLUS variants)cisa_csaf_ot

    Update SIMATIC WinCC (TIA Portal) to V17 Update 5 or newer, and then update panel to V17 Update 5 or newer

    https://support.industry.siemens.com/cs/ww/en/view/109746530/
  • BehobenSIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900Fcisa_csaf_ot

    Update SIMATIC WinCC (TIA Portal) to V17 Update 5 or newer, and then update panel to V17 Update 5 or newer

    https://support.industry.siemens.com/cs/ww/en/view/109746530/
  • BehobenSIMATIC NET PC Software V14cisa_csaf_ot

    Update to V14 SP1 Update 14 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109807351/
  • BehobenSIMATIC NET PC Software V16cisa_csaf_ot

    Update to V16 Update 6 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109811815/
  • BehobenSIMATIC NET PC Software V17cisa_csaf_ot

    Update to V17 SP1 or later version

  • BehobenSITOP Managercisa_csaf_ot

    Update to V1.2.4 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109760607/
  • BehobenTeleControl Server Basic V3cisa_csaf_ot

    Update to V3.1.1 or later version

    https://support.industry.siemens.com/cs/ww/en/view/109812231/
  • MitigationSIMATIC HMI Comfort Outdoor Panels (incl. SIPLUS variants)siemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC HMI Comfort Panels (incl. SIPLUS variants)siemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900Fsiemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC NET PC Software V14siemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC NET PC Software V15siemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC NET PC Software V16siemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC NET PC Software V17siemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSITOP Managersiemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationTeleControl Server Basic V3siemens_psirt

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • Mitigationbeckhoff_psirt

    Have your applications configured to use other than SecurityMode=None for all OPC UA connections. Avoid that these connect to an unknown OPC UA server with SecurityMode=None. In particular, avoid that your applications connect to servers which they discover via mDNS, a Local Discovery Server (LDS), an untrusted Global Discovery Server (GDS) or even trusted GDS using SecurityMode=none. Especially in the latter case an adversary might be able to apply the 'man in the middle' pattern to attack the connection and inject a bad message which triggers the vulnerability.

  • Mitigationphoenix_contact_psirt

    Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note: Measures to protect network-capable devices with Ethernet connection

  • Mitigationphoenix_contact_psirt

    Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note:Measures to protect network-capable devices with Ethernet connection

  • MitigationSIMATIC HMI Comfort Outdoor Panels (incl. SIPLUS variants)cisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC HMI Comfort Panels (incl. SIPLUS variants)cisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900Fcisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC NET PC Software V14cisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC NET PC Software V15cisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC NET PC Software V16cisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSIMATIC NET PC Software V17cisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationSITOP Managercisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • MitigationTeleControl Server Basic V3cisa_csaf_ot

    Do not use OPC client feature to connect via untrusted networks or to untrusted OPC-UA communication partners

  • Kein Fix geplantSIMATIC NET PC Software V15siemens_psirt

    Currently no fix is planned

  • Kein Fix geplantSIMATIC NET PC Software V15cisa_csaf_ot

    Currently no fix is planned

02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

6.5
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 3.5–6.5

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 2.9
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 3.6
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.13.5lowAV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Lsecondary · FSTEC (BDU) RU
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hsecondary · Phoenix Contact PSIRT DE
v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Hsecondary · Beckhoff PSIRT DE
v3.16mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-476USprimärCWE-476USCWE-476USCWE-476USCWE-476USCWE-476US
04

betroffene Produkte (93)

Betroffene Produkte und Versionsbereiche.

20 von 93 angezeigt
05

Advisories (6)

Hersteller- und Ökosystem-Meldungen dazu.

  • SSA-285795SSA-285795: Denial of Service in OPC-UA in Industrial Products2022-05-10csaf · siemens_psirtDE

    A vulnerability in the underlying third party component OPC UA ANSIC Stack (also called Legacy C-Stack) affects several industrial products. The vulnerability could cause a crash of the component that includes the vulnerable part of the stack. Siemens has released updates for the affected products and recommends to update to the latest versions.

  • VDE-2022-003BECKHOFF: Null Pointer Dereference vulnerability in products with OPC UA technology2022-03-01csaf · beckhoff_psirtDE

    By tricking clients of the mentioned products into contacting malicious OPC UA servers and thereby acting as OPC UA clients, a crash of the component can be provoked.

  • VDE-2022-010PHOENIX CONTACT: Multiple Linux component vulnerabilities fixed in latest AXC F x152 LTS release2022-04-12csaf · phoenix_contact_psirtDE

    PLCnext Control AXC F x152 is certified according to IEC 62443-4-1 and IEC 62443-4-2. This certification requires that all third-party components used in the firmware are regularly checked for known vulnerabilities. Firmware components in version 2021.06 had already been updated. For the 2022.0 LTS version more firmware components have been updated implicitly fixing the vulnerabilities listed. The vulnerabilities listed above have not been individually verified in terms of actual impact and/or limitations in combination with the affected products listed. The current LTS release 2022.0 LTS contains updates of integrated third-party libraries, SDKs and other third-party software to address these issues nevertheless. UPDATE A (April 4th, 2022): Added RFC 4072 (Art. No. 1051328) and fixed affected version of AXC F 3152

  • VDE-2022-046PHOENIX CONTACT: Multiple Linux component vulnerabilities in PLCnext Firmware2022-11-10csaf · phoenix_contact_psirtDE

    UPDATE A: Two devices (ENERGY AXC PU, SMARTRTU AXC SG) added (24.11.2022) Update for PLCnext Firmware containing fixes for recent vulnerability findings in Linux components and security enhancements. PLCnext Control AXC F x152 is certified according to IEC 62443-4-1 and IEC 62443-4-2. This certification requires that all third-party components used in the firmware are regularly checked for known vulnerabilities.

  • WID-SEC-W-2023-2603Siemens SICAM: Mehrere SchwachstellenDeutsch2023-10-09csaf · cert_bundDE

    Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in Siemens SICAM ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen, seine Privilegien zu erweitern und Daten zu manipulieren.

  • ICSA-22-132-08Siemens Industrial Products with OPC UA2022-05-10icsa · cisa_csaf_otUS

    A vulnerability in the underlying third party component OPC UA ANSIC Stack (also called Legacy C-Stack) affects several industrial products. The vulnerability could cause a crash of the component that includes the vulnerable part of the stack. Siemens has released updates for the affected products and recommends to update to the latest versions.

06

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bdubeckhoff_psirtsiemens_psirtphoenix_contact_psirtcert_bundcisa_csaf_otNVDCVE.orgMITRE
veröffentlicht 2022-03-21geändert 2026-06-17
09

Referenzen (14)

Externe Belege — Patches, Meldungen, Analysen.

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