CVE-2023-40438

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 11.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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

2024-01-10 22:03Z2 YR AGO

Last updated

2025-11-04 19:19Z11 MO AGO

Reserved

2023-08-14

Assigning CNA

apple

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weaknesses

• CWE-379Creation of Temporary File in Directory with Insecure PermissionsBase

Data version

5.2

Document digest

1b07d3d85b7f4ed7cbcc9607f62d0a16e591075398e57dfaf7ab280608aa88b8

• support.apple.comhttps://support.apple.com/en-us/HT213927
• support.apple.comhttps://support.apple.com/en-us/HT213940
• support.apple.comhttps://support.apple.com/kb/HT213940
• support.apple.comhttps://support.apple.com/kb/HT213927