CVE-2021-30902: apple ios and ipados Use After Free
CVSS: 7.8v3.1HighModified
Published 24-08-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-30902 is a high (CVSS 7.8) Use After Free vulnerability in apple ios and ipados. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 36.2% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 24-08-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A local attacker may be able to cause unexpected application termination or arbitrary code execution.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
0.00 pp
From 0.43% on 18-09-2026
18-09-202618-10-2026
EPSS score0.43%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apple4 products
- ios and ipados≥ unspecified, < 15.1 | ≥ unspecified, < 14.8
- ipad_os< 14.8.1
- ipados15.0
- iphone_os< 14.8.1 | 15.0
1 vendor · 4 products
References
2 links- support.apple.com/en-us/HT212867X Refsource MISC
- support.apple.com/en-us/HT212868X Refsource MISC