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CVE-2026-77646Server Side Request Forgery (SSRF) vulnerability reported in Windchill

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.

Timeline

  1. ID reserved

    By PTC

  2. Published

  3. · 1 day later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-77646, by who scored it
Scored byCVSSScoreVector
PTCCNA (assigner)4.0High7.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/AU:Y/R:U/V:D/RE:M/U:Red
NVDNVD · Deferred4.0High7.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/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:D/RE:M/U:Red
EPSS (exploitation in 30 days)
0.44% · top 61% of all CVEs (14 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.7.

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

References1

Sources

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

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CVE-2026-77646 badge
[![CVE-2026-77646](https://cveledger.app/badge/CVE-2026-77646.svg)](https://cveledger.app/cve/CVE-2026-77646)

Record last updated .