CVE-2021-30819 json
An out-of-bounds read was addressed with improved input validation.
published 2021-10-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17736
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 15 and iPadOS 15. Processing a maliciously crafted USD file may disclose memory contents.
Patch / fix
- Apple iOS and iPadOS 15
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- Apple iOS and iPadOS
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
support.apple.com
/kb/HT212804
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-2021-30819
- NVD CVE-2021-30819
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.