CVE-2021-30966
published 2021-08-24CVE-2021-30966: A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. User…
PriorityP339high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
1.47%
71.1th percentile
A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.1, watchOS 8.3, iOS 15.2 and iPadOS 15.2, tvOS 15.2. User traffic might unexpectedly be leaked to a proxy server despite PAC configurations.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | >= unspecified < 15.2 | 15.2 |
| apple | ipados | < 15.2 | 15.2 |
| apple | iphone_os | < 15.2 | 15.2 |
| apple | macos | < 12.1 | 12.1 |
| apple | macos | >= unspecified < 12.1 | 12.1 |
| apple | macos | >= unspecified < 15.2 | 15.2 |
| apple | macos_monterey | — | — |
| apple | tvos | < 15.2 | 15.2 |
| apple | tvos | — | — |
| apple | watchos | < 8.3 | 8.3 |
| apple | watchos | — | — |
| apple | watchos | >= unspecified < 8.3 | 8.3 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Apple
CVE-2021-30966: watchOS 8.3
vendor_apple·2021-12-13·CVSS 7.5
CVE-2021-30966 [HIGH] CVE-2021-30966: watchOS 8.3
Apple Security Update: About the security content of watchOS 8.3
Product: watchOS
Version: 8.3
CVE: CVE-2021-30966
Component: CFNetwork Proxies
Impact: User traffic might unexpectedly be leaked to a proxy server despite PAC configurations
Description: A logic issue was addressed with improved state management.
Apple
CVE-2021-30966: tvOS 15.2
vendor_apple·2021-12-13·CVSS 7.5
CVE-2021-30966 [HIGH] CVE-2021-30966: tvOS 15.2
Apple Security Update: About the security content of tvOS 15.2
Product: tvOS
Version: 15.2
CVE: CVE-2021-30966
Component: CFNetwork Proxies
Impact: User traffic might unexpectedly be leaked to a proxy server despite PAC configurations
Description: A logic issue was addressed with improved state management.
Apple
CVE-2021-30966: macOS Monterey 12.1
vendor_apple·2021-12-13·CVSS 7.5
CVE-2021-30966 [HIGH] CVE-2021-30966: macOS Monterey 12.1
Apple Security Update: About the security content of macOS Monterey 12.1
Product: macOS Monterey
Version: 12.1
CVE: CVE-2021-30966
Component: CFNetwork Proxies
Impact: User traffic might unexpectedly be leaked to a proxy server despite PAC configurations
Description: A logic issue was addressed with improved state management.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://support.apple.com/en-us/HT212975https://support.apple.com/en-us/HT212976https://support.apple.com/en-us/HT212978https://support.apple.com/en-us/HT212980https://support.apple.com/en-us/HT212975https://support.apple.com/en-us/HT212976https://support.apple.com/en-us/HT212978https://support.apple.com/en-us/HT212980
2021-08-24
Published