CVE-2020-3909

high-risk
Published 2020-04-01

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Multiple issues in libxml2.

Do I need to act?

~
2.6% 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
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (8)

Sun Zfs Storage Appliance Kit Software

Affected Vendors

Apple Oracle

References (16)

Vendor Advisory https://support.apple.com/HT211100
Vendor Advisory https://support.apple.com/HT211101
Vendor Advisory https://support.apple.com/HT211102
Vendor Advisory https://support.apple.com/HT211103
Vendor Advisory https://support.apple.com/HT211105
Vendor Advisory https://support.apple.com/HT211106
Vendor Advisory https://support.apple.com/HT211107
Third Party Advisory https://www.oracle.com/security-alerts/cpuoct2020.html
Vendor Advisory https://support.apple.com/HT211100
Vendor Advisory https://support.apple.com/HT211101
Vendor Advisory https://support.apple.com/HT211102
Vendor Advisory https://support.apple.com/HT211103
Vendor Advisory https://support.apple.com/HT211105
Vendor Advisory https://support.apple.com/HT211106
Vendor Advisory https://support.apple.com/HT211107
Third Party Advisory https://www.oracle.com/security-alerts/cpuoct2020.html
52
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 6/34 · Minimal
Exposure 14/34 · Moderate