Buffer overflow in Apple macOS
CVE-2023-27953
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3, macOS Monterey 12.6.4, macOS Big Sur 11.7.5. A remote user may be able to cause unexpected system termination or corrupt kernel memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (75.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Apple macOS — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/en-us/HT213670 (Vendor Advisory)
- support.apple.com/en-us/HT213677 (Vendor Advisory)
- support.apple.com/en-us/HT213675 (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-27953?
- CVE-2023-27953 is a critical-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2023-05-08.
- How severe is CVE-2023-27953?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2023-27953 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.