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Δ / VULNERABILITY RECORD

CVE-2026-28421.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSMEDIUM / 5.3No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Mar 09, 2026

Disclosure summary

Vim has a heap-buffer-overflow and a segmentation fault

Source-reported weakness categories

CWE-20

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) · 2026-Feb

Open original source · Updated Mar 09, 2026

Vim has a heap-buffer-overflow and a segmentation fault

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

Microsoft maximum product score: 5.3

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 vim 9.1.1616-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 vim 9.1.1616-1 on CBL Mariner 2.0 (MSRC status code 3)

Vendor remediation references

  • CBL-Mariner Releases · build 9.2.0088-1 · product IDs 20682-17084, 20683-17086
  • Vendor guidance · product IDs 20682-17084, 20683-17086

Original records & references

PUBLISHED 2026-02-28T20:01:27-05:00
MODIFIED 2026-03-09T21:37:08-04:00
INGESTED 2026-10-08T12:45:17-04:00