CVE-2020-9926 : A use after free issue was addressed with improved memory management. This issue is fixed in iOS 13.6 and iPadOS 13.6, t

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, iCloud for Windows 7.20, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.

Published 2021-04-02 18:15:18

Updated 2021-04-08 17:41:33

Source Apple Inc.

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Threat overview for CVE-2020-9926

Top countries where our scanners detected CVE-2020-9926

Top open port discovered on systems with this issue 548

IPs affected by CVE-2020-9926 736

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2020-9926!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2020-9926

EPSS FAQ

0.11%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-9926

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-9926

CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-9926

https://support.apple.com/en-us/HT211290

About the security content of tvOS 13.4.8 - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/en-us/HT211295

About the security content of iCloud for Windows 7.20 - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/en-us/HT211288

About the security content of iOS 13.6 and iPadOS 13.6 - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/en-us/HT211289

About the security content of macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra - Apple Support
Vendor Advisory

CVEs referencing this url
https://support.apple.com/en-us/HT211291

About the security content of watchOS 6.2.8 - Apple Support
Vendor Advisory

CVEs referencing this url

Products affected by CVE-2020-9926