How severe is CVE-2018-4238?

CVE-2018-4238 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2018-4238 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-2018-4238?

CVE-2018-4238 affects Apple Iphone Os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4238?

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

When was CVE-2018-4238 published?

CVE-2018-4238 was published on 2018-06-08 and last updated on 2026-06-17.

CVE-2018-4238

CVE-2018-4238 is a low-severity vulnerability in Apple Iphone Os with a CVSS 3.x base score of 2.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-732.

Key facts

Severity: Low (CVSS 3.x base score 2.4)
CVSS v2: 2.1
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Apple Iphone Os
Published: 2018-06-08
Last modified: 2026-06-17

Description

An issue was discovered in certain Apple products. iOS before 11.4 is affected. The issue involves the "Siri" component. It allows physically proximate attackers to bypass the lock-screen protection mechanism and enable Siri.

Frequently asked questions

What is CVE-2018-4238?: An issue was discovered in certain Apple products. iOS before 11.4 is affected. The issue involves the "Siri" component. It allows physically proximate attackers to bypass the lock-screen protection mechanism and enable Siri.
How severe is CVE-2018-4238?: CVE-2018-4238 has a CVSS 3.x base score of 2.4, rated low severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2018-4238 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-2018-4238?: CVE-2018-4238 affects Apple Iphone Os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4238?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-4238 published?: CVE-2018-4238 was published on 2018-06-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

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