How severe is CVE-2026-12569?

CVE-2026-12569 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-12569 being actively exploited?

Yes. CVE-2026-12569 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-06-25, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-12569?

CVE-2026-12569 primarily affects Ptc Flexplm. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-12569?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2026-12569 have an EU (EUVD) identifier?

Yes. CVE-2026-12569 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37831. It is also flagged as exploited in the EUVD (since 2026-06-25).

When was CVE-2026-12569 published?

CVE-2026-12569 was published on 2026-06-18 and last updated on 2026-06-30.

CVE-2026-12569

CVE-2026-12569 is a critical-severity vulnerability in Ptc Flexplm with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-06-25). The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-06-25)
EU (EUVD) id: EUVD-2026-37831
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2026-06-25)
Weakness: CWE-20
Affected product: Ptc Flexplm
Published: 2026-06-18
Last modified: 2026-06-30

Description

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

Frequently asked questions

What is CVE-2026-12569?: 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
How severe is CVE-2026-12569?: CVE-2026-12569 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-12569 being actively exploited?: Yes. CVE-2026-12569 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-06-25, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2026-12569?: CVE-2026-12569 primarily affects Ptc Flexplm. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-12569?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2026-12569 have an EU (EUVD) identifier?: Yes. CVE-2026-12569 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37831. It is also flagged as exploited in the EUVD (since 2026-06-25).
When was CVE-2026-12569 published?: CVE-2026-12569 was published on 2026-06-18 and last updated on 2026-06-30.

References

Affected products (19)

cpe:2.3:a:ptc:flexplm:*:*:*:*:*:*:*:*
cpe:2.3:a:ptc:flexplm:11.1m020:*:*:*:*:*:*:*
cpe:2.3:a:ptc:flexplm:11.2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:flexplm:12.0.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:flexplm:12.0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:flexplm:12.1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:flexplm:13.0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:flexplm:13.0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:*:*:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:11.0m030:-:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:11.1m020:-:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:11.2.1.0:-:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:12.0.2.0:-:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:12.1.2.0:-:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:13.0.2.0:-:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:13.1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:13.1.1.0:-:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:13.1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:windchill_pdmlink:13.1.3.0:*:*:*:*:*:*:*

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