CVE-2022-33139

mediumpriority · track · 39EPSS 0.013 · 70 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.26% (70th) EPSS
CVSS 6.8 · medium
Is it mine?
34 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-26

A vulnerability has been identified in Cerberus DMS (All versions), Desigo CC (All versions), Desigo CC Compact (All versions), SIMATIC WinCC OA V3.16 (All versions in default configuration), SIMATIC WinCC OA V3.17 (All versions in non-default configuration), SIMATIC WinCC OA V3.18 (All versions in non-default configuration). Affected applications use client-side only authentication, when neither server-side authentication (SSA) nor Kerberos authentication is enabled. In this configuration, attackers could impersonate other users or exploit the client-server protocol without being authenticated.

01

remediations

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

A vendor fix is available.

02

cvss

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

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-603USCWE-603USCWE-603USCWE-603US
04

affected products (34)

Products and version ranges known to be affected.

showing 20 of 34
05

advisories (4)

Vendor and ecosystem advisories describing this.

  • SSA-111512SSA-111512: Client-side Authentication in SIMATIC WinCC OA2022-06-21csaf · siemens_psirtDE

    SIMATIC WinCC OA implements client-side only authentication, when neither server-side authentication (SSA) nor Kerberos authentication is enabled. In this configuration, attackers could impersonate other users or exploit the client-server protocol without being authenticated. Siemens recommends to enable server-side authentication (SSA) or Kerberos authentication for all WinCC OA projects, as documented in the WinCC OA Security Guideline. In SIMATIC WinCC OA server-side authentication is available since V3.15 (and offered as the default configuration since V3.17). Additional information can be found at: https://cert-portal.siemens.com/productcert/news.html?id=21.

  • SSA-836027SSA-836027: Client-side Authentication in Desigo CC and Cerberus DMS2022-10-11csaf · siemens_psirtDE

    Desigo CC and Cerberus DMS are based on SIMATIC WinCC OA and implement client-side only authentication for specific parts of their client-server communication. In this configuration, attackers could impersonate other users or exploit the client-server protocol without being authenticated, as documented for SIMATIC WinCC OA in SSA-111512 [1]. Siemens recommends specific mitigations, documented in [2], for products where fixes are not, or not yet available. Additional details regarding these mitigations can be found in the chapter Additional Information. [1] https://cert-portal.siemens.com/productcert/html/ssa-111512.html [2] https://support.industry.siemens.com/cs/ww/en/view/109813389/

  • ICSA-22-172-06Siemens WinCC OA2022-06-21icsa · cisa_csaf_otUS

    SIMATIC WinCC OA implements client-side only authentication, when neither server-side authentication (SSA) nor Kerberos authentication is enabled. In this configuration, attackers could impersonate other users or exploit the client-server protocol without being authenticated. Siemens recommends to enable server-side authentication (SSA) or Kerberos authentication for all WinCC OA projects, as documented in the WinCC OA Security Guideline. In SIMATIC WinCC OA server-side authentication is available since V3.15 (and offered as the default configuration since V3.17). Additional information can be found at: https://cert-portal.siemens.com/productcert/news.html?id=21.

  • ICSA-22-286-16Siemens Desigo CC and Cerberus DMS2022-10-11icsa · cisa_csaf_otUS

    Desigo CC and Cerberus DMS are based on SIMATIC WinCC OA and implement client-side only authentication for specific parts of their client-server communication. In this configuration, attackers could impersonate other users or exploit the client-server protocol without being authenticated, as documented for SIMATIC WinCC OA in SSA-111512 [1]. Siemens recommends specific mitigations, documented in [2], for products where fixes are not, or not yet available. Additional details regarding these mitigations can be found in the chapter Additional Information. [1] https://cert-portal.siemens.com/productcert/html/ssa-111512.html [2] https://support.industry.siemens.com/cs/ww/en/view/109813389/

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otsiemens_psirtNVDCVE.orgMITRE
published 2022-06-21modified 2026-06-17
08

references (11)

External citations — patches, advisories, analysis.

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