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CVE-2026-12569: PTC Windchill and FlexPLM Improper Input Validation Vulnerability

criticalknown exploitedCVE-2026-12569
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
PTC Windchill and FlexPLM contains an improper input validation vulnerability allowing an unauthenticated, remote attacker to execute arbitrary code by sending a malicious request to the network.

CSIRTS triage

vendor: PTCproduct: Windchill and FlexPLMRemote code execution
What
An improper input validation vulnerability allows remote code execution.
Who is affected
Users of PTC Windchill and FlexPLM are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest version of PTC Windchill and FlexPLM.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-06-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-12569

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-12569coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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