CVE-2026-77646

Server Side Request Forgery (SSRF) vulnerability reported in Windchill

HIGH

7.7

CVSS Score

Published: August 20, 2026 at 10:11 PM UTC

Updated: October 26, 2026 at 10:10 AM UTC

2 products affected across 1 vendorWindchill PDMLinkFlexPLM

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Severity

HIGH7.7

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

A Server-Side Request Forgery (SSRF) vulnerability has been reported in PTC Windchill PDMLink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

FlexPLM · Ptc

90%

11.0 M030 11.1 M020 11.2.1.0 12.0.0.0 12.0.2.0 12.0.3.0 12.1.2.0 12.1.3.0 13.0.2.0 13.0.3.0

Windchill PDMLink · Ptc

90%

11.0 M030 11.1 M020 11.2.1.0 12.0.2.0 12.1.2.0 13.0.2.0 13.1.0.0 13.1.1.0 13.1.2.0 13.1.3.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.ptc.com/en/support/article/CS474826

References (1)

Vendor AdvisoryMitigationPermissions Required

Source: cverecord

https://www.ptc.com/en/support/article/CS474826

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHPTC

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-502CWE-918

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