CVE-2021-1821
First published: Mon May 24 2021(Updated: )
Networking. A logic issue was addressed with improved state management.
Credit: Georgi Valkov (httpstorm.com) Georgi Valkov (httpstorm.com) Georgi Valkov (httpstorm.com) product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple watchOS | <7.6 | 7.6 |
| Apple macOS Big Sur | <11.5 | 11.5 |
| Apple iOS | <14.6 | 14.6 |
| Apple iPadOS | <14.6 | 14.6 |
| Apple macOS | <11.5 | |
| Apple watchOS | <7.6 |
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Reference Links
- https://support.apple.com/en-us/HT212528 (Advisory)
- https://support.apple.com/en-us/HT212602 (Advisory)
- https://support.apple.com/en-us/HT212605 (Advisory)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2021-30805
- CVE-2021-30871
- CVE-2021-30790
- CVE-2021-31006
- CVE-2021-30781
- CVE-2021-30748
- CVE-2021-30775
- CVE-2021-30776
- CVE-2021-30786
- CVE-2021-30772
- CVE-2021-30783
- CVE-2021-30777
- CVE-2021-30789
- CVE-2021-30774
- CVE-2021-30780
- CVE-2021-30768
- CVE-2021-30817
- CVE-2021-30804
- CVE-2021-30760
- CVE-2021-30788
- CVE-2021-30759
- CVE-2021-30803
- CVE-2021-30779
- CVE-2021-30785
- CVE-2021-30787
- CVE-2021-30766
- CVE-2021-30765
- CVE-2021-30784
- CVE-2021-30793
- CVE-2021-30778
- CVE-2021-30677
- CVE-2021-3518
- CVE-2021-30796
- CVE-2021-30792
- CVE-2021-30791
- CVE-2021-1821
- CVE-2021-30782
- CVE-2021-31004
- CVE-2021-30798
- CVE-2021-30758
- CVE-2021-30795
- CVE-2021-30797
- CVE-2021-30799
- CVE-2021-30763
- CVE-2021-30773
- CVE-2021-30769
- CVE-2021-30770
- CVE-2021-30707
- CVE-2021-30685
- CVE-2021-30714
- CVE-2021-30729
- CVE-2021-30681
- CVE-2021-30686
- CVE-2021-30733
- CVE-2021-30753
- CVE-2021-30727
- CVE-2021-30724
- CVE-2021-30771
- CVE-2021-30697
- CVE-2021-30710
- CVE-2021-30687
- CVE-2021-30700
- CVE-2021-30701
- CVE-2021-30705
- CVE-2021-30706
- CVE-2021-30740
- CVE-2021-30674
- CVE-2021-30704
- CVE-2021-30715
- CVE-2021-30736
- CVE-2021-30703
- CVE-2021-30741
- CVE-2021-30756
- CVE-2021-30723
- CVE-2021-30691
- CVE-2021-30692
- CVE-2021-30694
- CVE-2021-30725
- CVE-2021-30746
- CVE-2021-30693
- CVE-2021-30695
- CVE-2021-30708
- CVE-2021-30709
- CVE-2021-30699
- CVE-2021-30999
- CVE-2021-30737
- CVE-2021-30744
- CVE-2021-21779
- CVE-2021-30682
- CVE-2021-30689
- CVE-2021-30749
- CVE-2021-30734
- CVE-2021-30720
- CVE-2021-23841
- CVE-2021-30698
- CVE-2021-30667
Frequently Asked Questions
What is CVE-2021-1821?
CVE-2021-1821 is a vulnerability in the Networking component of Apple watchOS, macOS Big Sur, iOS, and iPadOS.
What is the severity of CVE-2021-1821?
The severity of CVE-2021-1821 is not mentioned in the provided information.
How does CVE-2021-1821 affect Apple watchOS?
CVE-2021-1821 affects Apple watchOS version up to 7.6.
How does CVE-2021-1821 affect macOS Big Sur?
CVE-2021-1821 affects macOS Big Sur version up to 11.5.
How does CVE-2021-1821 affect iOS and iPadOS?
CVE-2021-1821 affects iOS and iPadOS version up to 14.6.
How can I fix CVE-2021-1821?
To fix CVE-2021-1821, update Apple watchOS to version 7.6, macOS Big Sur to version 11.5, and iOS and iPadOS to version 14.6.
- agent/type
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/apple-support
- agent/software-canonical-lookup-request
- collector/nvd-index
- agent/references
- agent/severity
- agent/author
- agent/tags
- agent/description
- agent/event
- collector/mitre-cve
- source/MITRE
- vendor/apple
- canonical/apple macos big sur
- canonical/apple watchos
- canonical/apple macos
- canonical/apple ios
- canonical/apple ipados