Buffer overflow in Apple macOS
CVE-2020-27906
Multiple integer overflows were addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1. A remote attacker may be able to cause unexpected application termination or heap corruption.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: +0.000
Affected products
- Apple macOS — versions unspecified
Weakness classification (CWE)
References
- support.apple.com/en-us/HT211931 (Vendor Advisory)
- support.apple.com/kb/HT212011 (Vendor Advisory)
- seclists.org/fulldisclosure/2020/Dec/32 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2020/Dec/26 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27906?
- CVE-2020-27906 is a high-severity vulnerability in Apple macOS, classified under Integer Overflow or Wraparound. CVSS score: 8.8/10. Published 2020-12-08.
- How severe is CVE-2020-27906?
- High severity. CVSS v3 base score is 8.8 out of 10.