CVE-2021-1807 json
A validation issue was addressed with improved input sanitization.
published 5y ago modified 4mo ago also EUVD-2021-7271
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 25%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Apple iOS and iPadOS 14.5
- Apple watchOS 7.4
Is CVE-2021-1807 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:C/A:N |
Affected products
- Apple iOS and iPadOS
- Apple watchOS
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
support.apple.com
/en-us/HT212317
vendor-advisory
-
support.apple.com
/en-us/HT212324
vendor-advisory
Sources
- CVE List CVE-2021-1807
- NVD CVE-2021-1807
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