CVE intelligence and bounded remediation

CVE-2020-1458 — Microsoft 365 Apps security vulnerability

High CVSS 9.3

A remote code execution vulnerability exists when Microsoft Office improperly validates input before loading dynamic link library (DLL) files, aka 'Microsoft Office Remote Code Execution Vulnerability'.

Severity
High
CVSS
9.3 (2.0)
Published
2020-07-14
CISA KEV
Not currently listed
Ecosystem
windows/system
Weaknesses
CWE-426

Affected products

  • microsoft / 365_apps

Matched remediation archetype

Supply-chain, dependency, build, and update integrity

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace affected packages, source archives, build actions, plugins, installers, and updates from declared source to deployed artifact.
  • Confirm provenance, signatures or digests, namespace ownership, lockfile resolution, registry configuration, and build-runner trust boundaries.
  • Inventory direct, transitive, vendored, generated, and bundled copies across releases and distribution channels.

Remediate safely

  • Move to a maintained trusted artifact or remove the dependency; pin immutable identities and verify provenance and integrity before use.
  • Regenerate lockfiles and artifacts in a clean isolated build, minimize build credentials and network access, and produce an updated software bill of materials.
  • Require reviewed update policy, protected publishing, and reproducible or independently attestable builds where supported.

Authoritative sources

Complete CVE record and remediation plan

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