CVE-2020-9926
A use after free issue was addressed with improved memory management.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.05% probability · 64th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- apple/icloud · apple/ipados · apple/iphone os · apple/mac os x · apple/tvos · apple/watchos
- Source
- product-security@apple.com
EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://support.apple.com/en-us/HT211288Vendor Advisory
- https://support.apple.com/en-us/HT211289Vendor Advisory
- https://support.apple.com/en-us/HT211290Vendor Advisory
- https://support.apple.com/en-us/HT211291Vendor Advisory
- https://support.apple.com/en-us/HT211295Vendor Advisory
- https://support.apple.com/en-us/HT211288Vendor Advisory
- https://support.apple.com/en-us/HT211289Vendor Advisory
- https://support.apple.com/en-us/HT211290Vendor Advisory
- https://support.apple.com/en-us/HT211291Vendor Advisory
- https://support.apple.com/en-us/HT211295Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.