CVE-2021-30719
HIGH
7.1
CVSS Score
Published: September 8, 2021 at 02:30 PM UTC
Updated: June 17, 2026 at 03:50 AM UTC
1 product affected across 1 vendormacOS
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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
Description
A local user may be able to cause unexpected system termination or read kernel memory. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. An out-of-bounds read issue was addressed by removing the vulnerable code.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 11.4v < 202110.15 ≤ v ≤ 10.15.611.0 ≤ v < 11.410.15.710.15.7 security_update_202010.15.7 security_update_2020-110.15.7 security_update_2020-510.15.7 security_update_2020-710.15.7 security_update_2021-110.15.7 security_update_2021-210.15.7 supplemental_update
Affected range stops below 11.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 2021, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT212529x_refsource_MISCRelease NotesVendor Advisory
Source: [email protected]
https://support.apple.com/en-us/HT212530CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-125
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