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Δ / VULNERABILITY RECORD

CVE-2026-21620.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSUnscoredNo severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Sep 19, 2026

Disclosure summary

TFTP Path Traversal

Source-reported weakness categories

CWE-23

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 Sep 19, 2026

TFTP Path Traversal

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

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 erlang 26.2.5.15-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 erlang 25.3.2.21-5 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 erlang 25.3.2.21-5 on CBL-Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 erlang 25.3.2.21-4 on CBL Mariner 2.0 (MSRC status code 3)

Vendor remediation references

  • CBL-Mariner Releases · build 26.2.5.17-1 · product IDs 20575-17084
  • Vendor guidance · product IDs 20575-17084
  • CBL-Mariner Releases · build 25.3.2.21-6 · product IDs 21145-17086
  • Vendor guidance · product IDs 21145-17086
  • Vendor guidance · build 25.3.2.21-6 · product IDs 21145-21692
  • Vendor guidance · product IDs 21145-21692

Original records & references

PUBLISHED 2026-02-24T20:03:47-05:00
MODIFIED 2026-09-19T21:51:26-04:00
INGESTED 2026-10-08T12:45:17-04:00