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PatchSiren cyber security CVE debrief

CVE-2026-15966 Progress CVE debrief

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-23T21:17:02.860Z and has not been modified since then. This vulnerability affects Progress MOVEit Transfer, specifically versions before 2025.1.5 and from 2026.0.0 before 2026.0.3. The vulnerability is a permissive cross-domain security policy with untrusted domains, which has a CVSS score of 7.5 and a severity of HIGH.

Vendor
Progress
Product
MOVEit Transfer
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-23
Original CVE updated
2026-07-28
Advisory published
2026-07-23
Advisory updated
2026-07-28

Who should care

Organizations using Progress MOVEit Transfer before 2025.1.5 or from 2026.0.0 before 2026.0.3 should review and apply patches to mitigate the vulnerability. This includes operators, platform administrators, vulnerability management teams, and security teams who need to assess the impact of this vulnerability on their systems and take necessary actions.

Technical summary

A permissive cross-domain security policy with untrusted domains vulnerability exists in Progress MOVEit Transfer. This issue affects MOVEit Transfer: before 2025.1.5, from 2026.0.0 before 2026.0.3. The vulnerability has a CVSS score of 7.5 and a severity of HIGH. Organizations using Progress MOVEit Transfer should review and apply patches to mitigate the vulnerability.

Defensive priority

High priority due to the HIGH severity CVSS score and potential impact on security. Organizations should prioritize patching and implementing additional security measures to restrict cross-domain interactions.

Recommended defensive actions

  • Review and apply patches for MOVEit Transfer to version 2025.1.5 or later, or 2026.0.3 or later.
  • Implement additional security measures to restrict cross-domain interactions.
  • Monitor for suspicious activity related to MOVEit Transfer.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.

Evidence notes

Evidence is based on the CVE record and NVD details. Limited information is available about the specific impacts and affected systems. The CVE record was published on 2026-07-23T21:17:02.860Z and has not been modified since then. The vulnerability has a CVSS score of 7.5 and a severity of HIGH. Organizations should review the CVE record and NVD details for further information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-15966 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-15966

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-15966 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-15966

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://docs.progress.com/bundle/moveit-transfer-release-notes-2026/page/Fixed-Issues-in-2026.0.3.html

    [email protected]

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.