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CVE-2026-12569

9.8, critical Known exploited Used in ransomware

PTC Windchill and FlexPLM Improper Input Validation Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
9.8, critical critical CVSS v3.1
EPSS, next 30 days
46% higher than 98.7% of scored CVEs
Exploitation
Confirmed in the wild
Published
18 Jun 20264 months ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 25 Jun 2026 and links it to ransomware activity. US federal agencies had to remediate by 28 Jun 2026, a deadline that has passed.

Required action. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Description

A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data. * This advisory also applies to all CPS versions * The identified vulnerability also impacts Windchill and FlexPLM releases prior to 11.0 M030

Details

Vendor
PTC
Product
Windchill PDMLink
Weakness
CWE-20 (opens in a new tab)
Status
Analyzed
Updated
1 Aug 2026
Assigner
0b655efc-079c-4cb9-9e8d-164871239f4e

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References 2

Other references 2

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Beyond this page

Is CVE-2026-12569 in your network?

This page tells you how dangerous CVE-2026-12569 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2026-12569 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.