CVE-2026-33893Network attack vector

Unauthorized access via hardcoded obfuscation key

Published May 12, 2026 · Updated May 12, 2026

Use of a hardcoded key in Siemens Teamcenter affected releases allows remote attackers to gain unauthorized access over a network. An obfuscation key is embedded directly in the application, allowing its recovery and reuse instead of keeping the secret external to deployed code. No authentication or user interaction is required; Siemens reports confidentiality loss only, while the specific component and protected resource are undisclosed.

CVSS severity8.7
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of a hardcoded key in Siemens Teamcenter affected releases allows remote attackers to gain unauthorized access over a network. An obfuscation key is embedded directly in the application, allowing its recovery and reuse instead of keeping the secret external to deployed code. No authentication or user interaction is required; Siemens reports confidentiality loss only, while the specific component and protected resource are undisclosed.

The record

CVE
CVE-2026-33893
Published
May 12, 2026
Updated
May 12, 2026
Vendor
Siemens
Product
Teamcenter
Classifications
CWE-798, CAPEC-191, CAPEC-70, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 12, 2026CVE publishedPublication date reported by the CVE source.
  2. May 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <V2312.0014
  2. Affected versionversion=0 <V2406.0012
  3. Affected versionversion=0 <V2412.0009
  4. Affected versionversion=0 <V2506.0005

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · Teamcenterversion=0 <V2312.0014; version=0 <V2406.0012; version=0 <V2412.0009; version=0 <V2506.0005

Published CVSS scores

8.7Siemens AGCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
7.5Siemens AGCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
CAPEC-191Read Sensitive Constants Within an Executable
CAPEC-70Try Common or Default Usernames and Passwords
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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