What is CVE-2020-27945?

CVE-2020-27945 is a high-severity vulnerability in Apple macOS, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-04-02.

How severe is CVE-2020-27945?

High severity. CVSS v3 base score is 7.8 out of 10.

Integer overflow in Apple macOS

CVE-2020-27945

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, macOS Big Sur 11.0.1. Processing maliciously crafted web content may lead to arbitrary code execution.

Vulnerability class: Integer Overflow

EPSS: 0.007 (50.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Apple Macos — versions unspecified
Apple Mac_os_x — versions 10.14.6, 10.15.7

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

product-security@apple.com (x_refsource_MISC, Vendor Advisory)
product-security@apple.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-27945?: CVE-2020-27945 is a high-severity vulnerability in Apple macOS, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2021-04-02.
How severe is CVE-2020-27945?: High severity. CVSS v3 base score is 7.8 out of 10.