CVE-2021-30849
Multiple memory corruption issues were addressed with improved memory handling.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, watchOS 8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, iTunes 12.12 for Windows. Processing maliciously crafted web content 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
- 1.90% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- apple/itunes · apple/safari · apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/watchos
- Source
- product-security@apple.com
EPSS 1.9% 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/2021/Oct/60Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/61Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/62Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/63Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/10/26/9Mailing List
- http://www.openwall.com/lists/oss-security/2021/10/27/1Mailing List
- http://www.openwall.com/lists/oss-security/2021/10/27/2Mailing List
- http://www.openwall.com/lists/oss-security/2021/10/27/4Mailing List
- https://support.apple.com/en-us/HT212807Vendor Advisory
- https://support.apple.com/en-us/HT212814Vendor Advisory
- https://support.apple.com/en-us/HT212815Vendor Advisory
- https://support.apple.com/en-us/HT212816Vendor Advisory
- https://support.apple.com/en-us/HT212817Vendor Advisory
- https://support.apple.com/en-us/HT212819Vendor Advisory
- https://support.apple.com/kb/HT212869Vendor Advisory
- https://support.apple.com/kb/HT212953Vendor Advisory
- http://seclists.org/fulldisclosure/2021/Oct/60Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/61Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/62Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/63Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/10/26/9Mailing List
- http://www.openwall.com/lists/oss-security/2021/10/27/1Mailing List
- http://www.openwall.com/lists/oss-security/2021/10/27/2Mailing List
- http://www.openwall.com/lists/oss-security/2021/10/27/4Mailing List
- https://support.apple.com/en-us/HT212807Vendor Advisory
- https://support.apple.com/en-us/HT212814Vendor Advisory
- https://support.apple.com/en-us/HT212815Vendor Advisory
- https://support.apple.com/en-us/HT212816Vendor Advisory
- https://support.apple.com/en-us/HT212817Vendor Advisory
- https://support.apple.com/en-us/HT212819Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.