CVE-2026-12569 | Remote Code Execution (RCE) vulnerability in Windchill PDMlink

Exp

A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of untrusted data.  * This advisory also applies to all CPS versions * The identified vulnerability also impacts Windchill and FlexPLM releases prior to 11.0 M030

Published: 2026-06-17 Last update: 2026-06-26 Assigner: 0b655efc-079c-4cb9-9e8d-164871239f4e Source: 0b655efc-079c-4cb9-9e8d-164871239f4e
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-12569 is rated Critical Active Threat (85/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.11%). CISA KEV confirms active exploitation (added 2026-06-25) affecting PTC / Windchill and FlexPLM. a weakness (CWE-20) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2026-12569

Name: PTC Windchill and FlexPLM Improper Input Validation Vulnerability · CISA KEV detail

Exploit added: 2026-06-25

Action due: 2026-06-28

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Exploit prediction scoring system (EPSS) score for CVE-2026-12569

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-27 0.93% 1.11% +0.17%
2 2026-06-26 0.50% 0.93% +0.43%
3 2026-06-18 — 0.50% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-12569

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 4.0 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:C/RE:X/U:Red Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:H)
High confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:H)
High integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:H)
High availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:L)
Limited confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:L)
Limited integrity impact on subsequent systems.
Subsequent system availability impact (SA:L)
Limited availability impact on subsequent systems.
Exploit maturity (threat) (E:X)
Not defined: no reliable threat intelligence; scoring assumes the worst case (equivalent to Attacked).
Confidentiality requirement (CR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Integrity requirement (IR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Availability requirement (AR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Modified attack vector (MAV:X)
Not defined: scoring uses the Base Attack Vector (AV).
Modified attack complexity (MAC:X)
Not defined: scoring uses the Base Attack Complexity (AC).
Modified attack requirements (MAT:X)
Not defined: scoring uses the Base Attack Requirements (AT).
Modified privileges required (MPR:X)
Not defined: scoring uses the Base Privileges Required (PR).
Modified user interaction (MUI:X)
Not defined: scoring uses the Base User Interaction (UI).
Modified vulnerable system confidentiality impact (MVC:X)
Not defined: scoring uses the Base VC metric.
Modified vulnerable system integrity impact (MVI:X)
Not defined: scoring uses the Base VI metric.
Modified vulnerable system availability impact (MVA:X)
Not defined: scoring uses the Base VA metric.
Modified subsequent system confidentiality impact (MSC:X)
Not defined: scoring uses the Base SC metric.
Modified subsequent system integrity impact (MSI:X)
Not defined: scoring uses the Base SI metric.
Modified subsequent system availability impact (MSA:X)
Not defined: scoring uses the Base SA metric.
Safety (supplemental) (S:X)
Not evaluated.
Automatable (supplemental) (AU:Y)
Yes: all four kill-chain steps (reconnaissance, weaponization, delivery, exploitation) can be automated.
Recovery (supplemental) (R:U)
User: manual user intervention is needed to recover services.
Value density (supplemental) (V:C)
Concentrated: a single exploit event controls rich resources (e.g., a central server).
Vulnerability response effort (supplemental) (RE:X)
Not evaluated.
Provider urgency (supplemental) (U:RED)
Red: provider rates highest urgency.
 — — 0b655efc-079c-4cb9-9e8d-164871239f4e
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2026-12569

GitHub Security Advisory for CVE-2026-12569

GHSA-f345-wxwr-fxfh · Severity: critical — A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink...

Affected software / configurations for CVE-2026-12569

Vendor Product Version Raw CPE
ptc flexplm <= 11.0m030 cpe:2.3:a:ptc:flexplm:*:*:*:*:*:*:*:*
ptc flexplm 11.1m020 cpe:2.3:a:ptc:flexplm:11.1m020:*:*:*:*:*:*:*
ptc flexplm 11.2.1.0 cpe:2.3:a:ptc:flexplm:11.2.1.0:*:*:*:*:*:*:*
ptc flexplm 12.0.0.0 cpe:2.3:a:ptc:flexplm:12.0.0.0:*:*:*:*:*:*:*
ptc flexplm 12.0.2.0 cpe:2.3:a:ptc:flexplm:12.0.2.0:*:*:*:*:*:*:*
ptc flexplm 12.1.3.0 cpe:2.3:a:ptc:flexplm:12.1.3.0:*:*:*:*:*:*:*
ptc flexplm 13.0.2.0 cpe:2.3:a:ptc:flexplm:13.0.2.0:*:*:*:*:*:*:*
ptc flexplm 13.0.3.0 cpe:2.3:a:ptc:flexplm:13.0.3.0:*:*:*:*:*:*:*
ptc windchill_pdmlink < 11.0m030 cpe:2.3:a:ptc:windchill_pdmlink:*:*:*:*:*:*:*:*
ptc windchill_pdmlink 11.0m030 cpe:2.3:a:ptc:windchill_pdmlink:11.0m030:-:*:*:*:*:*:*
ptc windchill_pdmlink 11.1m020 cpe:2.3:a:ptc:windchill_pdmlink:11.1m020:-:*:*:*:*:*:*
ptc windchill_pdmlink 11.2.1.0 cpe:2.3:a:ptc:windchill_pdmlink:11.2.1.0:-:*:*:*:*:*:*
ptc windchill_pdmlink 12.0.2.0 cpe:2.3:a:ptc:windchill_pdmlink:12.0.2.0:-:*:*:*:*:*:*
ptc windchill_pdmlink 12.1.2.0 cpe:2.3:a:ptc:windchill_pdmlink:12.1.2.0:-:*:*:*:*:*:*
ptc windchill_pdmlink 13.0.2.0 cpe:2.3:a:ptc:windchill_pdmlink:13.0.2.0:-:*:*:*:*:*:*
ptc windchill_pdmlink 13.1.0.0 cpe:2.3:a:ptc:windchill_pdmlink:13.1.0.0:*:*:*:*:*:*:*
ptc windchill_pdmlink 13.1.1.0 cpe:2.3:a:ptc:windchill_pdmlink:13.1.1.0:-:*:*:*:*:*:*
ptc windchill_pdmlink 13.1.2.0 cpe:2.3:a:ptc:windchill_pdmlink:13.1.2.0:*:*:*:*:*:*:*
ptc windchill_pdmlink 13.1.3.0 cpe:2.3:a:ptc:windchill_pdmlink:13.1.3.0:*:*:*:*:*:*:*

References for CVE-2026-12569

cvelogic Threat Intelligence