How severe is CVE-2018-4397?

CVE-2018-4397 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2018-4397 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4397?

CVE-2018-4397 affects Apple Apple Support. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4397?

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

When was CVE-2018-4397 published?

CVE-2018-4397 was published on 2019-04-03 and last updated on 2026-06-17.

CVE-2018-4397

CVE-2018-4397 is a medium-severity vulnerability in Apple Apple Support with a CVSS 3.x base score of 4.3. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apple Apple Support
Published: 2019-04-03
Last modified: 2026-06-17

Description

Analytics data was sent using HTTP rather than HTTPS. This was addressed by sending analytics data using HTTPS. This issue affected versions prior to Apple Support 2.4 for iOS.

Frequently asked questions

What is CVE-2018-4397?: Analytics data was sent using HTTP rather than HTTPS. This was addressed by sending analytics data using HTTPS. This issue affected versions prior to Apple Support 2.4 for iOS.
How severe is CVE-2018-4397?: CVE-2018-4397 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2018-4397 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4397?: CVE-2018-4397 affects Apple Apple Support. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4397?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-4397 published?: CVE-2018-4397 was published on 2019-04-03 and last updated on 2026-06-17.

References

https://support.apple.com/kb/HT209117

Affected products (1)

cpe:2.3:a:apple:apple_support:*:*:*:*:*:*:*:*

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