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CVE-2025-40765 is a critical vulnerability in Siemens TeleControl Server Basic V3.1 (all versions >= V3.1.2.2 and < V3.1.2.3) due to missing authentication for a critical function (CWE-306). This flaw allows unauthenticated remote attackers to obtain password hashes of users and subsequently log in to perform authenticated operations on the database service. The vulnerability is remotely exploitable, requires no privileges or user interaction, and is associated with attack patterns such as message identifier manipulation and communication channel manipulation. Proof-of-concept exploits may be available, increasing the risk of exploitation.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical information disclosure vulnerability in TeleControl Server Basic.
A critical information disclosure vulnerability in TeleControl Server Basic V3.1 (versions >= V3.1.2.2 and < V3.1.2.3) allows unauthenticated remote attackers to obtain user password hashes and perform authenticated operations on the database service.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.