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CVE-2021-1838

This issue was addressed with improved checks. This issue is fixed in iOS 14.4 and iPadOS 14.4....

7.8 High

This issue was addressed with improved checks. This issue is fixed in iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.07%Up 0.3 points since Sep 9, 2021
90%50%10%1%

What each source reports

NVD Score used7.8

This issue was addressed with improved checks. This issue is fixed in iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution.

Record
CVE-2021-1838
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Updated
2026-11-02
CVE ListNo score

This issue was addressed with improved checks. This issue is fixed in iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution.

Record
CVE-2021-1838
Updated
2026-11-02
EUVDEUVD-2021-7302No score

This issue was addressed with improved checks. This issue is fixed in iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution.

Record
EUVD-2021-7302
Updated
2026-11-03
GitHub AdvisoriesGHSA-phfp-qm4g-g8c7No score

This issue was addressed with improved checks. This issue is fixed in iOS 14.4 and iPadOS 14.4....

This issue was addressed with improved checks. This issue is fixed in iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted image may lead to arbitrary code execution.

Record
GHSA-phfp-qm4g-g8c7
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-1838 is a high vulnerability (CVSS 7.8) in Apple Ipados, published September 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.07%, the 65th percentile. No source names a fixed version.

References

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