CVE-2021-1821
MEDIUM
6.5
CVSS Score
Published: October 28, 2021 at 06:16 PM UTC
Updated: June 17, 2026 at 03:32 AM UTC
2 products affected across 1 vendormacOSwatchOS
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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.7%
Description
A logic issue was addressed with improved state management. This issue is fixed in watchOS 7.6, macOS Big Sur 11.5. Visiting a maliciously crafted webpage may lead to a system denial of service.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 11.5v < 7.6
Affected range stops below 11.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.6, 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)
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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