How severe is CVE-2023-40418?

CVE-2023-40418 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-40418 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40418?

CVE-2023-40418 affects Apple Watchos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40418?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-40418 published?

CVE-2023-40418 was published on 2023-09-27 and last updated on 2026-06-17.

CVE-2023-40418

CVE-2023-40418 is a medium-severity vulnerability in Apple Watchos with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apple Watchos
Published: 2023-09-27
Last modified: 2026-06-17

Description

An authentication issue was addressed with improved state management. This issue is fixed in watchOS 10. An Apple Watch Ultra may not lock when using the Depth app.

Frequently asked questions

What is CVE-2023-40418?: An authentication issue was addressed with improved state management. This issue is fixed in watchOS 10. An Apple Watch Ultra may not lock when using the Depth app.
How severe is CVE-2023-40418?: CVE-2023-40418 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-40418 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40418?: CVE-2023-40418 affects Apple Watchos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40418?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-40418 published?: CVE-2023-40418 was published on 2023-09-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

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