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Δ / VULNERABILITY RECORD

CVE-2025-2312.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSMEDIUM / 5.9No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Aug 12, 2026

Disclosure summary

cifs.upcall makes an upcall to the wrong namespace in containerized environments

Source-reported weakness categories

CWE-488

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2025-Mar

Open original source · Updated Aug 12, 2026

cifs.upcall makes an upcall to the wrong namespace in containerized environments

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 5.9

VendorProduct / associationVersion / bounds
Microsoft update guidecbl2 cifs-utils 6.14-3 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 cifs-utils 7.0-2 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 cifs-utils 7.3-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 cifs-utils 6.14-3 on CBL-Mariner 2.0 (MSRC status code 3)

Vendor remediation references

  • CBL-Mariner Releases · build 6.14-3 · product IDs 19978-17086, 19978-21692
  • Vendor guidance · product IDs 19978-17086, 19978-21692
  • CBL-Mariner Releases · build 7.3-1 · product IDs 19981-17084, 19355-17084
  • Vendor guidance · product IDs 19981-17084, 19355-17084

Original records & references

PUBLISHED 2025-04-07T20:00:00-04:00
MODIFIED 2026-08-12T18:49:18-04:00
INGESTED 2026-10-08T12:50:09-04:00