Buffer overflow in Apple Icloud
CVE-2020-3846
A buffer overflow was addressed with improved size 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, iTunes for Windows 12.10.4, iCloud for Windows 11.0, iCloud for Windows 7.17. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Apple Icloud
- Apple Icloud For Windows — versions unspecified
- Apple Icloud For Windows (Legacy) — versions unspecified
- Apple iOS — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple Itunes
- Apple Itunes For Windows — versions unspecified
- Apple macOS — versions unspecified
- Apple Mac OS X
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/HT210947 (Release Notes, Vendor Advisory)
- support.apple.com/HT210948 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3846?
- CVE-2020-3846 is a high-severity vulnerability in Apple Icloud, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2020-02-27.
- How severe is CVE-2020-3846?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-3846 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.