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CVE record · CVE-2021-1782

A race condition was addressed with improved locking.

CVSS 7.0 HighCriticalIn CISA KEVEPSS 0.022 · 82nd percentile

Critical, because:

  • In CISA’s KEV catalogue since 3 Nov 2021: it is known to be exploited.

How we decide what’s critical

Published by the CVE Program (CNA: apple) at 2 Apr 2021, 17:59 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Apple iOS and iPadOS
  • affected unspecified to before 14.4 custom
Apple macOS
  • affected unspecified to before 11.2 custom
Apple macOS
  • affected unspecified to before 7.3 custom
Apple macOS
  • affected unspecified to before 14.4 custom
Identifiers
CVE-2021-1782
CNA
apple
Weakness (CWE)
CWE-667
Tags
Published
2 Apr 2021
Updated
21 Oct 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.0 High 3.1 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Listed since 3 Nov 2021: known to be exploited.
  • EPSS 0.022, the 82nd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 2 Apr 2021. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.