synced 12 MIN AGO
01 Record

CVE-2021-31008

A type confusion issue was addressed with improved memory handling. This issue is fixed in Safari 15.1, tvOS 15.1, iOS 15 and iPadOS 15, macOS Monterey 12.0.1, watchOS 8.1. Processing maliciously

UnratedPUBLISHEDCNA: apple
CNA base scoreUnratedNo CNA CVSS vector

02 Description

A type confusion issue was addressed with improved memory handling. This issue is fixed in Safari 15.1, tvOS 15.1, iOS 15 and iPadOS 15, macOS Monterey 12.0.1, watchOS 8.1. Processing maliciously

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
1.28% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 69.7% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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
2021-08-24 18:51Z5 YR AGO
Last updated
2024-08-03 22:48Z2 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
  • CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base
Data version
5.1
Document digest
b0697e4bb58ae5a961fc9039c23215224bf944f19f77a10819c3c3d99825ff9a

05 Affected products

VendorProductVersionsPlatforms
AppleiOS and iPadOS< 15—
ApplemacOS< 12.0—
ApplewatchOS< 8.1, < 15.1—

06 References