Vulnerability Details : CVE-2021-30786
A race condition was addressed with improved state handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution.
Products affected by CVE-2021-30786
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-30786
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-30786
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.1
|
MEDIUM | AV:N/AC:H/Au:N/C:P/I:P/A:P |
4.9
|
6.4
|
NIST | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST |
CWE ids for CVE-2021-30786
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-30786
-
https://support.apple.com/en-us/HT212602
About the security content of macOS Big Sur 11.5 - Apple SupportRelease Notes;Vendor Advisory
-
https://support.apple.com/en-us/HT212601
About the security content of iOS 14.7 and iPadOS 14.7 - Apple SupportRelease Notes;Vendor Advisory
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