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CVE-2021-1807

A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14...

5.5 Medium

A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4. A local user may be able to write arbitrary files.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.32%Unchanged since Sep 9, 2021
90%50%10%1%

What each source reports

NVD Score used5.5

A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4. A local user may be able to write arbitrary files.

Record
CVE-2021-1807
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
4.9 MediumAV:L/AC:L/Au:N/C:N/I:C/A:N
Weakness
CWE-20
Updated
2026-11-02
CVE ListNo score

A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4. A local user may be able to write arbitrary files.

Record
CVE-2021-1807
Updated
2026-11-02
EUVDEUVD-2021-7271No score

A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4. A local user may be able to write arbitrary files.

Record
EUVD-2021-7271
Updated
2026-11-03
GitHub AdvisoriesGHSA-c7jv-4hgw-738v5.5

A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14...

A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4. A local user may be able to write arbitrary files.

Record
GHSA-c7jv-4hgw-738v
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-668
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-2021-1807 is a medium vulnerability (CVSS 5.5) 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 0.32%, the 25th percentile. No source names a fixed version.

References

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