How severe is CVE-2014-4451?

CVE-2014-4451 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2014-4451 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4451?

CVE-2014-4451 primarily affects Apple Iphone Os. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4451?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-4451 published?

CVE-2014-4451 was published on 2014-11-18 and last updated on 2026-06-17.

CVE-2014-4451

CVE-2014-4451 is a high-severity vulnerability in Apple Iphone Os with a CVSS 2.0 base score of 7.2. 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-264.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Apple Iphone Os
Published: 2014-11-18
Last modified: 2026-06-17

Description

Apple iOS before 8.1.1 does not properly enforce the failed-passcode limit, which makes it easier for physically proximate attackers to bypass the lock-screen protection mechanism via a series of guesses.

Frequently asked questions

What is CVE-2014-4451?: Apple iOS before 8.1.1 does not properly enforce the failed-passcode limit, which makes it easier for physically proximate attackers to bypass the lock-screen protection mechanism via a series of guesses.
How severe is CVE-2014-4451?: CVE-2014-4451 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2014-4451 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-4451?: CVE-2014-4451 primarily affects Apple Iphone Os. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-4451?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-4451 published?: CVE-2014-4451 was published on 2014-11-18 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.0.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:8.0.2:*:*:*:*:*:*:*

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