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CVE-2021-30983: Apple iOS and iPadOS Buffer Overflow Vulnerability

criticalknown exploitedCVE-2021-30983
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Apple iOS and iPadOS contain a buffer overflow vulnerability that could allow an application to execute code with kernel privileges.

CSIRTS triage

vendor: Appleproduct: iOS and iPadOSRemote code execution
What
A buffer overflow vulnerability in Apple iOS and iPadOS could allow an application to execute code with kernel privileges.
Who is affected
Users of affected iOS and iPadOS versions.
Urgency
Remediation is critical due to confirmed exploitation and high severity.
Action
Update to the latest versions of iOS and iPadOS.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-06-27
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-30983

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-30983coverage & exploitation statusNVD · CVE.org

Recent advisories for Apple iOS and

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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