CVE-2020-9961
An out-of-bounds read was addressed with improved input validation.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.7, Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave. Processing a maliciously crafted image may lead to 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
- 1.59% probability · 75th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- apple/icloud · apple/itunes · apple/ipados · apple/iphone os · apple/mac os x · apple/tvos · apple/watchos
- Source
- product-security@apple.com
EPSS 1.6% 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
- http://seclists.org/fulldisclosure/2020/Nov/19Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/20Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/21Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/22Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT211849Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT211843Vendor Advisory
- https://support.apple.com/kb/HT211844Vendor Advisory
- https://support.apple.com/kb/HT211850Vendor Advisory
- https://support.apple.com/kb/HT211935Vendor Advisory
- https://support.apple.com/kb/HT211952Vendor Advisory
- http://seclists.org/fulldisclosure/2020/Nov/19Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/20Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/21Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/22Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT211849Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT211843Vendor Advisory
- https://support.apple.com/kb/HT211844Vendor Advisory
- https://support.apple.com/kb/HT211850Vendor Advisory
- https://support.apple.com/kb/HT211935Vendor Advisory
- https://support.apple.com/kb/HT211952Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.