CVE-2020-9870
An attacker with memory write capability may be able to bypass pointer authentication codes and run arbitrary code.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A logic issue was addressed with improved validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8. An attacker with memory write capability may be able to bypass pointer authentication codes and run arbitrary code.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.00% probability · 81th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- apple/ipados · apple/iphone os · apple/mac os x · apple/tvos
- Source
- product-security@apple.com
EPSS 2.0% 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/HT211288Vendor Advisory
- https://support.apple.com/HT211289Vendor Advisory
- https://support.apple.com/HT211290Vendor Advisory
- https://support.apple.com/HT211288Vendor Advisory
- https://support.apple.com/HT211289Vendor Advisory
- https://support.apple.com/HT211290Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.