How severe is CVE-2014-4383?

CVE-2014-4383 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-4383 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4383?

CVE-2014-4383 primarily affects Apple Iphone Os. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4383?

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

When was CVE-2014-4383 published?

CVE-2014-4383 was published on 2014-09-18 and last updated on 2026-06-17.

CVE-2014-4383

CVE-2014-4383 is a medium-severity vulnerability in Apple Iphone Os with a CVSS 2.0 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 2.0 base score 4.3)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apple Iphone Os
Published: 2014-09-18
Last modified: 2026-06-17

Description

The Assets subsystem in Apple iOS before 8 and Apple TV before 7 allows man-in-the-middle attackers to spoof a device's update status via a crafted Last-Modified HTTP response header.

Frequently asked questions

What is CVE-2014-4383?: The Assets subsystem in Apple iOS before 8 and Apple TV before 7 allows man-in-the-middle attackers to spoof a device's update status via a crafted Last-Modified HTTP response header.
How severe is CVE-2014-4383?: CVE-2014-4383 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-4383 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-4383?: CVE-2014-4383 primarily affects Apple Iphone Os. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-4383?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-4383 published?: CVE-2014-4383 was published on 2014-09-18 and last updated on 2026-06-17.

References

Affected products (17)

cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.0.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.0.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.0.3:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.0.4:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.0.5:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.0.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:7.1.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:6.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:6.0.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:6.0.2:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:6.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:6.1.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:tvos:6.1.2:*:*:*:*:*:*:*

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