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CVE-2026-12569 is a critical remote code execution vulnerability in PTC Windchill PDMlink and PTC FlexPLM caused by deserialization of untrusted data. It permits a remote, unauthenticated attacker to send a malicious network request that results in arbitrary code execution in the affected application environment. The vulnerability affects all CPS versions and Windchill and FlexPLM releases before 11.0 M030. Active exploitation has involved deployment of application-specific JSP web shells for credential theft and data exfiltration.
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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.
233 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in PTC Windchill reportedly exploited to gain access to product lifecycle management environments, steal sensitive engineering data, deploy a custom in-application implant, and support Clop-linked extortion activity.
A critical remote code execution vulnerability in PTC Windchill PDMlink and PTC FlexPLM caused by deserialization of untrusted data, reportedly exploited by Cl0p to compromise more than 40 organizations.
A critical input validation vulnerability in internet-exposed PTC Windchill and FlexPLM instances that was exploited to steal sensitive data from victim networks.
A critical improper input validation vulnerability in PTC Windchill and FlexPLM that can allow attackers to bypass security checks via specially crafted input, potentially leading to unauthorized access or malicious code execution when exposed to the Internet.
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.