CVE-2021-1882

Status: ModifiedCritical (9.8)—
A memory corruption issue was addressed with improved validation. This issue is fixed in Security Update 2021-002 Catalina, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. An application may be able to gain elevated privileges.
CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base score: 9.8
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.69%
Percentile among all scored CVEs: 76
Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (6)

Apple — Ipados Apple — Iphone OS Apple — MAC OS X Apple — Macos Apple — Tvos Apple — Watchos
CWEs

CWE-787
References

Raw JSON (NVD)

Show
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