Summaryinfo

A vulnerability marked as critical has been reported in PTC Windchill PDMLink and FlexPLM up to 13.1.3.0. Impacted is an unknown function. The manipulation leads to code injection. This vulnerability is listed as CVE-2026-4681. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in PTC Windchill PDMLink and FlexPLM up to 13.1.3.0 and classified as very critical. This issue affects an unknown code. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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. This issue affects Windchill PDMLink: 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; FlexPLM: 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.

It is possible to read the advisory at ptc.com. The identification of this vulnerability is CVE-2026-4681 since 03/23/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/28/2026). The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0822). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

• PTC FlexPLM
• PTC Windchill

Productinfo

Vendor

• PTC

Name

• FlexPLM
• Windchill PDMLink

Version

• 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

CPE 2.3info

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CPE 2.2info

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