01 Record
CVE-2021-30656
An access issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5. A malicious application may be able to determine kernel memory layout.
UnratedPUBLISHEDCNA: apple
CNA base scoreUnratedNo CNA CVSS vector
02 Description
An access issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5. A malicious application may be able to determine kernel memory layout.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.86% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 58.1% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-09-08 14:48Z5 YR AGO
- Last updated
- 2024-08-03 22:40Z2 YR AGO
- Reserved
- 2021-04-13
- Assigning CNA
- apple
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 14f73b585569ecde11c5105161bccbb1859ac5632ab4cd3fe66c587d068d1af2
05 Affected products
VendorProductVersionsPlatforms
06 References
- support.apple.comhttps://support.apple.com/en-us/HT212317