How severe is CVE-2015-3804?

CVE-2015-3804 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2015-3804 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3804?

CVE-2015-3804 primarily affects Apple Mac Os X. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-3804?

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-2015-3804 published?

CVE-2015-3804 was published on 2015-08-17 and last updated on 2026-06-17.

CVE-2015-3804

CVE-2015-3804 is a high-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 7.5. 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-119.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Apple Mac Os X
Published: 2015-08-17
Last modified: 2026-06-17

Description

FontParser in Apple iOS before 8.4.1 and OS X before 10.10.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted font file, a different vulnerability than CVE-2015-5756 and CVE-2015-5775.

Frequently asked questions

What is CVE-2015-3804?: FontParser in Apple iOS before 8.4.1 and OS X before 10.10.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted font file, a different vulnerability than CVE-2015-5756 and CVE-2015-5775.
How severe is CVE-2015-3804?: CVE-2015-3804 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2015-3804 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3804?: CVE-2015-3804 primarily affects Apple Mac Os X. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-3804?: 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-2015-3804 published?: CVE-2015-3804 was published on 2015-08-17 and last updated on 2026-06-17.

References

Affected products (2)

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

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