CVE-2021-30983A buffer overflow issue was addressed with improved memory handling.
Updated under an hour ago ()
Does this affect you?
It affects Apple iOS and iPadOS and 2 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jun 27, 2022; federal agencies had to remediate by Jul 18, 2022. Treat that date as your deadline.
Do this next
Free account, 1 product
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.
- CVSS
- 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-120
- Known exploited
- Added to CISA KEV Jun 27, 2022; federal remediation due Jul 18, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 2.92% (percentile 87)
- Assigned by
- apple
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apple iOS and iPadOS apple:ios_and_ipados (from the name) | from unspecified before 15.2 | CNA record |
apple ipados apple:ipados | before 15.2 | NVD |
apple iphone_os apple:iphone_os | before 15.2 | NVD |
References
- https://support.apple.com/en-us/HT212976x-refsource-misc, release-notes, vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30983us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.