CVE-2026-43771
HIGH
7.1
CVSS Score
Published: July 27, 2026 at 08:14 PM UTC
Updated: October 24, 2026 at 01:10 PM UTC
1 product affected across 1 vendormacOS
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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
Description
A stack overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause a denial-of-service.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
14.0 ≤ v < 14.8.815.0 ≤ v < 15.7.826.0 ≤ v < 26.6
Affected range stops below 14.8.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.7.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 26.6, 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 (3)
SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.1HIGHCISA-ADP
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-121
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