CVE-2018-4124

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

5.97% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 92.8% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-04-03 06:00Z8 YR AGO

Last updated

2024-08-05 05:04Z2 YR AGO

Reserved

2018-01-02

Assigning CNA

apple

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

95b6f39ab6804ab1d5310b92443479cef67a979b14841f960444981145510bd2

• support.apple.comhttps://support.apple.com/HT208534x_refsource_CONFIRM
• support.apple.comhttps://support.apple.com/HT208537x_refsource_CONFIRM
• support.apple.comhttps://support.apple.com/HT208535x_refsource_CONFIRM
• www.securitytracker.com1040396http://www.securitytracker.com/id/1040396vdb-entryx_refsource_SECTRACK
• nakedsecurity.sophos.comhttps://nakedsecurity.sophos.com/2018/02/20/apple-fixes-that-1-character-to-crash-your-mac-and-iphone-bug/x_refsource_MISC
• support.apple.comhttps://support.apple.com/HT208536x_refsource_CONFIRM