CVE-2026-84558
MEDIUMCVSS 5.5/10EPSS 0.14%
Last modified
CVE-2026-84558 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A double free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
Description
A double free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27. An app may be able to cause unexpected system termination.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Macos | < 27.0 |
References
- https://support.apple.com/en-us/149035Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-84558?
A double free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27. An app may be able to cause unexpected system termination.
How severe is CVE-2026-84558?
CVE-2026-84558 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.
How do I fix CVE-2026-84558?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-84551A logic issue was addressed with improved validation. This i…4.4
- CVE-2026-84552The issue was addressed with improved memory handling. This …5.5
- CVE-2026-84553A resource exhaustion issue was addressed with improved inpu…7.5
- CVE-2026-84554An integer overflow was addressed with improved input valida…5.9
- CVE-2026-84555An authorization issue was addressed with improved access co…5.5
- CVE-2026-84556An authorization issue was addressed with improved access co…5.5
- CVE-2026-84559A permissions issue was addressed with improved validation. …5.5
- CVE-2026-84560An authorization issue was addressed with improved state man…6.1
- CVE-2026-84561A double free issue was addressed with improved memory manag…9.8
- CVE-2026-84562A race condition was addressed with additional validation. T…4.7
- CVE-2026-84563A logic issue was addressed with improved checks. This issue…7.5
- CVE-2026-84564An uninitialized memory issue was addressed with improved me…4.3
Are you affected by CVE-2026-84558?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST