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Known exploited vulnerability

CVE-2021-30983

highCVSS 3.1 7.8In CISA KEVEPSS 2.9%Published · Apple

The short answer

CVE-2021-30983 affects Apple iOS and iPadOS and is rated high (CVSS 7.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-06-27: attackers are using it, so patch it first.

What it is

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 15.2 and iPadOS 15.2. An application may be able to execute arbitrary code with kernel privileges.

Weakness: CWE-120.

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 Jun 27, 2022

Federal due date Jul 18, 2022

EPSS, next 30 days

2.9%

Higher than 87% 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. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2021-30983 being exploited?

Yes. CISA added CVE-2021-30983 to its Known Exploited Vulnerabilities catalog on 2022-06-27, with a federal remediation due date of 2022-07-18.

How do I fix CVE-2021-30983?

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.

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