Buffer overflow in Apple iOS
CVE-2020-3856
A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. Processing a maliciously crafted string may lead to heap corruption.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Apple iOS — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions unspecified
- Apple Mac OS X
- Apple tvOS — versions unspecified
- Apple watchOS — versions unspecified
Weakness classification (CWE)
References
- support.apple.com/HT210919 (Release Notes, Vendor Advisory)
- support.apple.com/HT210918 (Release Notes, Vendor Advisory)
- support.apple.com/HT210921 (Release Notes, Vendor Advisory)
- support.apple.com/HT210920 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3856?
- CVE-2020-3856 is a high-severity vulnerability in Apple iOS, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2020-02-27.
- How severe is CVE-2020-3856?
- High severity. CVSS v3 base score is 7.8 out of 10.