Is CVE-2021-1782 actively exploited?

Yes. KEV Intelligence tracks CVE-2021-1782 as a known exploited vulnerability. Confidence is confirmed.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2021-1782. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

CVE-2021-1782 affects Apple iOS and iPadOS, macOS. KEV Intelligence lists 4 version rows; examples include unspecified to < 14.4, unspecified to < 11.2, and unspecified to < 7.3.

Yes. CVE-2021-1782 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2021-1782

Q: How should organizations remediate it?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Q: Is it in CISA KEV?

Yes. CVE-2021-1782 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

iOS and iPadOS

Apple / iOS and iPadOS · affected before 14.4

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Severity: CVSS 7.0 · High
Confidence: Confirmed
Exploit status: Exploited in the wild
EPSS: 2.2%
First observed: —
Last observed: —

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2021-1782 is a vulnerability affecting Apple iOS and iPadOS, macOS. A race condition was addressed with improved locking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.

Who is affected?

Apple / iOS and iPadOS affected before 14.4.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

A race condition was addressed with improved locking

A race condition was addressed with improved locking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4.

A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited..

Vendor Product Affected Status

Apple iOS and iPadOS Before 14.4 Affected

Apple macOS Before 11.2 Affected

Apple macOS Before 7.3 Affected

Apple macOS Before 14.4 Affected

Published: 02 Apr 2021
Exploitation Reported: 03 Nov 2021
Attack vector: Local
Complexity: High
Privileges: Low
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2021-1782
support.apple.com/en-us/HT212147 support.apple.com · CVE Record https://support.apple.com/en-us/HT212147
support.apple.com/en-us/HT212146 support.apple.com · CVE Record https://support.apple.com/en-us/HT212146
support.apple.com/en-us/HT212148 support.apple.com · CVE Record https://support.apple.com/en-us/HT212148
support.apple.com/en-us/HT212149 support.apple.com · CVE Record https://support.apple.com/en-us/HT212149

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 03 Nov 2021

Independent exploitation attestation added to the KEV Intelligence record.

Proof of concept available

GitHub

Recorded 10 Feb 2021

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

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Source	Added
CISA First	2021-11-03 00:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

7.0 High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

2.2%

Weaknesses

Improper Locking CWE-667

All CVSS Scores

CVSS v3.1 7.0 High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 6.9 Medium

AV:L/AC:M/Au:N/C:C/I:C/A:C

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

synacktiv/CVE-2021-1782

github · Created 2021-02-10 14:38:05 UTC · 39 stars · AI assessment 90%

Timeline

From disclosure to observed exploitation

03 Nov 2021
Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
02 Apr 2021
CVE published

Vulnerability disclosed publicly
10 Feb 2021
Public PoC available

Public proof-of-concept code published
08 Dec 2020
CVE ID reserved

Identifier reserved by the CNA

Pro API

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Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2021-1782

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2021-1782",
  "confidence": "Confirmed",
  "cvss_score": 7.0,
  "cvss_estimated": false,
  "epss_score": 0.02222,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

Early warning alerts

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