Known exploited vulnerability
CVE-2021-30883
The short answer
CVE-2021-30883 affects Apple iOS and iPadOS and is rated high (CVSS 7.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-05-23: attackers are using it, so patch it first.
What it is
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.0.2 and iPadOS 15.0.2, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1. An application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited..
Weakness: CWE-787.
Severity
7.8 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since May 23, 2022
Federal due date Jun 13, 2022
EPSS, next 30 days
15%
Higher than 97% of scored CVEs
How it can be exploited
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
iOS and iPadOS, macOS. NVD's record lists the exact affected versions.
References
- support.apple.com/en-us/HT212846 Vendor Advisory
- support.apple.com/en-us/HT212868 Vendor Advisory
- support.apple.com/en-us/HT212869 Vendor Advisory
- support.apple.com/en-us/HT212872 Vendor Advisory
- support.apple.com/en-us/HT212874 Vendor Advisory
- support.apple.com/en-us/HT212876 Vendor Advisory
- support.apple.com/en-us/HT212846 Vendor Advisory
- support.apple.com/en-us/HT212868 Vendor Advisory
- support.apple.com/en-us/HT212869 Vendor Advisory
- support.apple.com/en-us/HT212872 Vendor Advisory
- support.apple.com/en-us/HT212874 Vendor Advisory
- support.apple.com/en-us/HT212876 Vendor Advisory
Questions
Is CVE-2021-30883 being exploited?
Yes. CISA added CVE-2021-30883 to its Known Exploited Vulnerabilities catalog on 2022-05-23, with a federal remediation due date of 2022-06-13.
How do I fix CVE-2021-30883?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
Related
Latest CVEs this week
Critical and High CVEs from the last 7 days, with KEV and EPSS.
Exploited vulnerabilities by vendor
Every vendor in CISA's KEV catalog, with its count.
Apple exploited vulnerabilities
Everything CISA lists as exploited for Apple.
Vulnerability watch
A briefing and a fix pull request when an advisory hits your dependencies.
Know the day a CVE lands in your code
Connect a GitHub repository and ZeusQA checks its dependencies daily, briefs each advisory and opens the fix. Three test runs free, no card.