Vulnerability Details : CVE-2020-9818

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.
Published 2020-06-09 17:15:13
Updated 2020-06-12 15:00:12
Source Apple Inc.
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2020-9818

CVE-2020-9818 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Apple iOS, iPadOS, and watchOS Out-of-Bounds Write Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Apple iOS, iPadOS, and watchOS Mail contains an out-of-bounds write vulnerability which may allow memory modification or application termination when processing a maliciously crafted mail message.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2020-9818
Added on 2021-11-03 Action due date 2022-05-03

Exploit prediction scoring system (EPSS) score for CVE-2020-9818

EPSS FAQ
3.94%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-9818

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
 MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
 NIST
8.8
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.8
5.9
 NIST

CWE ids for CVE-2020-9818

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-9818

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