CVE-2026-77645

Published Aug 20, 2026 Modified Aug 22, 2026 CWE-20 CWE-502

Description

A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data.

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EPSS — Exploit Prediction

0.0047
Probability of exploitation
0.39%
Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-20 Improper Input Validation
CWE-502 Deserialization of Untrusted Data

References

Frequently Asked Questions

What is CVE-2026-77645? +
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data.
How do I check if I'm vulnerable to CVE-2026-77645? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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