Siemens Security Flaw: Unauthenticated Hackers & The Missing Password Mystery!
As of January 10, 2023, CISA will stop updating ICS security advisories for Siemens product vulnerabilities. For the freshest scoop on vulnerabilities, head over to Siemens’ ProductCERT Security Advisories. Stay secure, stay updated, and don’t let your guard down—because nothing says “I love surprises” like a remote attacker!

Hot Take:
Siemens’ TeleControl Server Basic has a vulnerability so spicy it could make a ghost pepper sweat! With CISA stepping back from updates, Siemens is now left with the job of keeping their digital fortress in check. I guess it’s not just their trains that need to stay on track!
Key Points:
- CISA halts updates for Siemens ICS security advisories; Siemens takes the reins.
- The vulnerability (CVE-2025-40765) is rated 9.3 on the CVSS v4 scale.
- Remote attackers could exploit a missing authentication to obtain user password hashes.
- TeleControl Server Basic V3.1 versions before V3.1.2.3 are affected.
- Siemens suggests restricting access and updating to the latest server version as mitigation strategies.
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