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CVE-2026-4681

Critical Remote Code Execution vulnerability reported in Windchill

Critical9.3EPSS 0.72%
Published
Updated
Reserved
Assigned by
PTC

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. 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.

Scores

CVSS scores of CVE-2026-4681, by who scored it
Scored byCVSSScoreVector
PTCCNA (assigner)4.0Critical9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/AU:Y/R:U/V:C/RE:M/U:Red
NVDNVD · Awaiting Analysis4.0Critical9.3CVSS: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:M/U:Red
EPSS (exploitation in 30 days)
0.72% · top 46% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.3.

Weakness

Affected products

  • PTC · Windchill PDMLink

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

  • PTC · FlexPLM

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

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .