CVE-2021-1780 json
A memory initialization issue was addressed with improved memory handling.
published 2021-04-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7244
- cvss
- 4.4
- 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 17%
- public exploits
- 0
- none known
Summary
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 14.4 and iPadOS 14.4. An attacker in a privileged position may be able to perform a denial of service attack.
Patch / fix
- Apple iOS and iPadOS 14.4
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- Apple iOS and iPadOS
Classification
- Weakness
-
- CWE-665 Improper Initialization
References
-
support.apple.com
/en-us/HT212146
release-notes, vendor-advisory
Sources
- CVE List CVE-2021-1780
- NVD CVE-2021-1780
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