Threadlinqs IntelligenceStart free

Threat video1:00

CVE-2026-126325 PTC Windchill RCE: Detection & IOCs

Crafted requests run code on PTC Windchill and FlexPLM via deserialization. 9 detection rules, 19 IOCs and a free Splunk SPL rule.

Read the full threat intel for CVE-2026-126325 PTC Windchill RCE: Detection & IOCs →

Chapters

  1. 0:00The hookPTC patched a critical flaw: 9.2.
  2. 0:04The storyA sibling flaw was exploited.
  3. 0:11Attack pathSuspected affiliates chained a disclosure.
  4. 0:24AttributionNo threat actor is attributed.
  5. 0:28Indicators of compromise15 indicators to hunt: 12 IPs, 1 IP range and 1 SHA-256 hash, and more.
  6. 0:38MITRE ATT&CK techniques8 ATT&CK techniques, from resource development to impact.
  7. 0:42Remediation5 steps now: Apply the PTC patch to all self-hosted Windchill and FlexPLM.
  8. 0:50Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00PTC patched a critical flaw: 9.2.

0:05A sibling flaw was exploited.

0:07This one: no exploitation reported.

0:11Suspected affiliates chained a disclosure.

0:14Then a flaw gave remote code execution.

0:16Web shells were dropped. Data was staged.

0:19Extortion emails were reported.

0:24No threat actor is attributed. Confidence: low.

0:2915 indicators to hunt: 12 IPs, 1 IP range and 1 SHA-256 hash, and more.

0:388 ATT&CK techniques, from resource development to impact.

0:435 steps now: Apply the PTC patch to all self-hosted Windchill and FlexPLM.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.