9.3

CVE-2021-30916: apple ios and ipados Out-of-bounds Write

CVSS: 9.3v2.0HighModified
Published 24-08-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-30916 is a high (CVSS 9.3) Out-of-bounds Write vulnerability in apple ios and ipados. EPSS estimates a 1.56% chance of exploitation in the next 30 days, higher than 74.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
1.56%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-08-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.56%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

0.00 pp

From 1.56% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.56%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apple8 products
  • ios and ipados≥ unspecified, < 15.1 | ≥ unspecified, < 14.8
  • ipad_os< 14.8.1
  • ipados15.0
  • iphone_os< 14.8.1 | 15.0
  • mac_os_x< 10.15.7 | 10.15.7 | 10.15.7:security_update_2020-001 | 10.15.7:security_update_2021-001 | 10.15.7:security_update_2021-002 | 10.15.7:security_update_2021-003 | 10.15.7:security_update_2021-004 | 10.15.7:security_update_2021-005 | 10.15.7:security_update_2021-006 | 10.15.7:supplemental_update

1 vendor · 8 products

References

9 links