CVE-2021-30826 json
A logic issue was addressed with improved state management.
published 5y ago modified 4mo ago also EUVD-2021-17743
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
A logic issue was addressed with improved state management. This issue is fixed in iOS 15 and iPadOS 15. In certain situations, the baseband would fail to enable integrity and ciphering protection.
Patch / fix
- Apple iOS and iPadOS 15
Is CVE-2021-30826 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
1.26% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- Apple iOS and iPadOS
References
-
support.apple.com
/kb/HT212807
release-notes, vendor-advisory
-
support.apple.com
/en-us/HT212814
release-notes, vendor-advisory
-
seclists.org
/fulldisclosure/2021/Oct/61
mailing-list, third-party-advisory
Sources
- CVE List CVE-2021-30826
- NVD CVE-2021-30826
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