Out-of-bounds Read in Apple iOS And Ipados
CVE-2020-9956
An out-of-bounds read was 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. Processing a maliciously crafted font file may lead to arbitrary code execution.
Vulnerability class: Buffer Overflow
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: 0.011 (63.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Apple iOS And Ipados — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions unspecified
- Apple Mac OS X — versions 10.14.6, 10.15.7
- Apple tvOS — versions unspecified
- Apple watchOS — versions unspecified
Weakness classification (CWE)
References
- support.apple.com/en-us/HT211843 (Vendor Advisory)
- support.apple.com/en-us/HT211850 (Vendor Advisory)
- support.apple.com/en-us/HT211844 (Vendor Advisory)
- support.apple.com/en-us/HT211931 (Vendor Advisory)
- support.apple.com/en-us/HT212011 (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-9956?
- CVE-2020-9956 is a high-severity vulnerability in Apple iOS And Ipados, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2021-04-02.
- How severe is CVE-2020-9956?
- High severity. CVSS v3 base score is 7.8 out of 10.