High severity · published Jun 9, 2020
CVE-2020-9818
Apple iOS, iPadOS, and watchOS Out-of-Bounds Write Vulnerability
In wildKEV
8.8
CVSS
2.3%
EPSS
Yes
On KEV
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5. Processing a maliciously crafted mail message may lead to unexpected memory modification or application termination.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.3% · higher than 84% of CVEs
Exploited in the wildYes
CISA KEVListed Nov 3, 2021
Federal remediation dueMay 3, 2022
Ransomware campaign useNot known
Affected products
Which versions
IO
iOS · Apple
before iOS 13.5 and iPadOS 13.5 · source: vendor, NVD
IO
iOS-1 · Apple
before iOS 12.4.7 · source: vendor
WA
watchOS · Apple
before watchOS 6.2.5 · source: vendor, NVD
II
iOS, iPadOS, and watchOS · Apple
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-9818
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-9818
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://support.apple.com/HT211168
x_refsource_MISC
https://support.apple.com/HT211175
x_refsource_MISC
https://support.apple.com/HT211169
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