Vulnerability · Published Aug 24, 2021 · Assigned by apple
CVE-2021-30939
High 7.8
In plain English
A high-severity security flaw in iOS and iPadOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.0% (higher than 91% of all known vulnerabilities).
Severity (CVSS NVD)7.8High
Exploit odds (30 days)4.0%top 9.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing a maliciously crafted image may lead to arbitrary code execution.
Affected products (as reported)
References
- https://support.apple.com/en-us/HT212975 x_refsource_MISC
- https://support.apple.com/en-us/HT212976 x_refsource_MISC
- https://support.apple.com/en-us/HT212978 x_refsource_MISC
- https://support.apple.com/en-us/HT212979 x_refsource_MISC
- https://support.apple.com/en-us/HT212981 x_refsource_MISC
- https://support.apple.com/en-us/HT212980 x_refsource_MISC
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1414 x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-22-359/ x_refsource_MISC