CVE-2021-1885: apple ios and ipados Out-of-bounds Read
CVSS: 7.8v3.1HighModified
Published 08-09-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-1885 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in apple ios and ipados. EPSS estimates a 1.24% chance of exploitation in the next 30 days, higher than 68.6% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
1.24%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 08-09-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing a maliciously crafted image may lead to arbitrary code execution.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.24%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
0.00 pp
From 1.24% on 18-09-2026
18-09-202618-10-2026
EPSS score1.24%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apple6 products
- ios and ipados≥ unspecified, < 14.5
- ipados< 14.5
- iphone_os< 14.5
- macos≥ unspecified, < 11.3 | ≥ 11.0, < 11.3
- tvos≥ unspecified, < 14.5 | < 14.5
1 vendor · 6 products