Double Free in Apple iOS And Ipados
CVE-2021-30703
A double free issue was addressed with improved memory management. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave, macOS Big Sur 11.4, watchOS 7.5. An application may be able to execute arbitrary code with kernel privileges.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Apple iOS And Ipados — versions unspecified
- Apple Ipados
- Apple Iphone OS
- Apple macOS — versions unspecified
- Apple Mac OS X — versions 10.14.6, 10.15.7
- Apple tvOS
- Apple watchOS
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT212600 (Vendor Advisory)
- support.apple.com/en-us/HT212603 (Vendor Advisory)
- support.apple.com/en-us/HT212528 (Vendor Advisory)
- support.apple.com/en-us/HT212529 (Vendor Advisory)
- support.apple.com/en-us/HT212532 (Vendor Advisory)
- support.apple.com/en-us/HT212533 (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-30703?
- CVE-2021-30703 is a high-severity vulnerability in Apple iOS And Ipados, classified under Double Free. CVSS score: 7.8/10. Published 2021-09-08.
- How severe is CVE-2021-30703?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-30703 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.