CVE-2020-9967

moderate-risk
Published 2021-04-02

Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, tvOS 14.0, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, watchOS 7.0, iOS 14.0 and iPadOS 14.0. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

Do I need to act?

~
1.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (19)

Affected Vendors

Apple

References (12)

Third Party Advisory http://packetstormsecurity.com/files/163501/XNU-Network-Stack-Kernel-Heap-Overfl...
Vendor Advisory https://support.apple.com/en-us/HT211843
Vendor Advisory https://support.apple.com/en-us/HT211844
Vendor Advisory https://support.apple.com/en-us/HT211850
Vendor Advisory https://support.apple.com/en-us/HT211931
Vendor Advisory https://support.apple.com/en-us/HT212011
Third Party Advisory http://packetstormsecurity.com/files/163501/XNU-Network-Stack-Kernel-Heap-Overfl...
Vendor Advisory https://support.apple.com/en-us/HT211843
Vendor Advisory https://support.apple.com/en-us/HT211844
Vendor Advisory https://support.apple.com/en-us/HT211850
Vendor Advisory https://support.apple.com/en-us/HT211931
Vendor Advisory https://support.apple.com/en-us/HT212011
47
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 4/34 · Minimal
Exposure 19/34 · Moderate