CVE-2020-9849

An information disclosure issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, iOS 14.0 and iPadOS 14.0, iTunes for Windows 12.10.9, iCloud for Windows 11.5, tvOS 14.0. A remote attacker may be able to leak memory.

• CWE-200

• http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
• https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
• https://support.apple.com/en-us/HT211843Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211844Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211850Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211931Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211935Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211952Release Notes, Vendor Advisory
• http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
• https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
• https://support.apple.com/en-us/HT211843Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211844Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211850Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211931Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211935Release Notes, Vendor Advisory
• https://support.apple.com/en-us/HT211952Release Notes, Vendor Advisory

Published

Dec 8, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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• CVE-2020-9842An entitlement parsing issue was addressed with improved par…7.1
• CVE-2020-9843An input validation issue was addressed with improved input …7.1
• CVE-2020-9844A double free issue was addressed with improved memory manag…7.5
• CVE-2020-9846A logic issue was addressed with improved state management. …5.3
• CVE-2020-9847An out-of-bounds read was addressed with improved bounds che…8.6
• CVE-2020-9848An authorization issue was addressed with improved state man…2.4
• CVE-2020-9850A logic issue was addressed with improved restrictions. This…9.8
• CVE-2020-9851An access issue was addressed with improved access restricti…5.5
• CVE-2020-9852An integer overflow was addressed through improved input val…7.8
• CVE-2020-9853A memory corruption issue was addressed with improved valida…7.8
• CVE-2020-9854A logic issue was addressed with improved validation. This i…7.8
• CVE-2020-9855A validation issue existed in the handling of symlinks. This…7.8