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Vulnerabilities

Vulnerability · CVE-2025-66744

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Published Mar 30, 2026 · catalog updated Mar 30, 2026 · Yonyou YonBIP

Patch now

CVE-2025-66744 is in the CISA known-exploited catalog. Confirm Yonyou YonBIP against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
1.54%
Remediation
Remediation guidance
Affected products
vendor Yonyou YonBIP

In Yonyou YonBIP v3 and before, the LoginWithV8 interface in the series data application service system is vulnerable to path traversal, allowing unauthorized access to sensitive information within the system

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Yonyou YonBIPversion unspecified

How to fix CVE-2025-66744

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-66744 is in the CISA known-exploited catalog. Confirm Yonyou YonBIP against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 1.54%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 30, 2026 · VulnCheck KEV

    Detected

    In Yonyou YonBIP v3 and before, the LoginWithV8 interface in the series data application service system is vulnerable to path traversal, allowing unauthorized access to sensitive information within the system

  2. Mar 30, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2025-66744

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-66744

    30-day exploitation probability 1.5%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2025-66744

    In Yonyou YonBIP v3 and before, the LoginWithV8 interface in the series data application service system is vulnerable to path traversal, allowing unauthorized access to sensitive information within the system

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.