CVE-2020-9818

HIGHCISA KEV

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published6/9/2020

Last Modified10/23/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorApple

ProductiOS, iPadOS, and watchOS

Vulnerability NameApple iOS, iPadOS, and watchOS Out-of-Bounds Write Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2022-05-03

Ransomware UseUnknown

Affected Products

apple:ipadosapple:iphone_osapple:watchos

Weaknesses (CWE)

CWE-787CWE-787

References

https://support.apple.com/HT211168(product-security@apple.com)

https://support.apple.com/HT211169(product-security@apple.com)

https://support.apple.com/HT211175(product-security@apple.com)

https://support.apple.com/HT211168(af854a3a-2127-422b-91ae-364da2661108)

https://support.apple.com/HT211169(af854a3a-2127-422b-91ae-364da2661108)

https://support.apple.com/HT211175(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9818(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.