What is CVE-2018-4258?

CVE-2018-4258 is a critical-severity vulnerability in Apple Mac OS X, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2019-01-11.

How severe is CVE-2018-4258?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Apple Mac OS X

CVE-2018-4258

In macOS High Sierra before 10.13.5, a buffer overflow was addressed with improved bounds checking.

Vulnerability class: Buffer Overflow

EPSS: 0.013 (67.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apple Mac_os_x
N/a — versions n/a

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

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

Frequently asked questions

What is CVE-2018-4258?: CVE-2018-4258 is a critical-severity vulnerability in Apple Mac OS X, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2019-01-11.
How severe is CVE-2018-4258?: Critical severity. CVSS v3 base score is 9.8 out of 10.