CVE-2020-27898
MEDIUMCVSS 5.5/10EPSS 0.99%
Last modified
CVE-2020-27898 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A denial of service issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1. EPSS estimates a 0.99% chance of exploitation in the next 30 days.
Description
A denial of service issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1. An attacker may be able to bypass Managed Frame Protection.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Macos | < 11.0.1 |
References
- http://seclists.org/fulldisclosure/2020/Dec/26Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT211931Vendor Advisory
- https://support.apple.com/kb/HT212011Vendor Advisory
- http://seclists.org/fulldisclosure/2020/Dec/26Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT211931Vendor Advisory
- https://support.apple.com/kb/HT212011Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-27898?
A denial of service issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1. An attacker may be able to bypass Managed Frame Protection.
How severe is CVE-2020-27898?
CVE-2020-27898 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.
How do I fix CVE-2020-27898?
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.
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Are you affected by CVE-2020-27898?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST