VulnerabilityModified
CVE-2023-40420
Processing web content may lead to a denial-of-service.
MEDIUM 6.5EPSS 1.42%
Does this matter?
Lower severity and a low EPSS score (1.42%). Track it; it rarely justifies an emergency change on its own.
Description
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.6, tvOS 17, iOS 16.7 and iPadOS 16.7, macOS Monterey 12.7, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may lead to a denial-of-service.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.42% probability · 73th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/watchos
- Source
- product-security@apple.com
EPSS 1.4% 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/2023/Oct/10Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/3
- http://seclists.org/fulldisclosure/2023/Oct/4
- http://seclists.org/fulldisclosure/2023/Oct/5Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/6
- http://seclists.org/fulldisclosure/2023/Oct/8
- http://seclists.org/fulldisclosure/2023/Oct/9
- https://support.apple.com/en-us/HT213927Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213931Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213932Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213936Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213937Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213938Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213940Release Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2023/Oct/10Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/3
- http://seclists.org/fulldisclosure/2023/Oct/4
- http://seclists.org/fulldisclosure/2023/Oct/5Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/6
- http://seclists.org/fulldisclosure/2023/Oct/8
- http://seclists.org/fulldisclosure/2023/Oct/9
- https://support.apple.com/en-us/HT213927Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213931Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213932Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213936Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213937Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213938Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213940Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT213931
- https://support.apple.com/kb/HT213932
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.