CVE-2021-30826 json
A logic issue was addressed with improved state management.
published 2021-10-19 5 y ago modified 2026-06-17 4 mo 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
Exploit prediction
1.26% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.