How severe is CVE-2011-3439?

CVE-2011-3439 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2011-3439 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3439?

CVE-2011-3439 primarily affects Apple Iphone Os. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3439?

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

When was CVE-2011-3439 published?

CVE-2011-3439 was published on 2011-11-11 and last updated on 2026-06-16.

CVE-2011-3439

CVE-2011-3439 is a critical-severity vulnerability in Apple Iphone Os with a CVSS 2.0 base score of 9.3. 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-787.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Apple Iphone Os
Published: 2011-11-11
Last modified: 2026-06-16

Description

FreeType in CoreGraphics in Apple iOS before 5.0.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted font in a document.

Frequently asked questions

What is CVE-2011-3439?: FreeType in CoreGraphics in Apple iOS before 5.0.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted font in a document.
How severe is CVE-2011-3439?: CVE-2011-3439 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2011-3439 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3439?: CVE-2011-3439 primarily affects Apple Iphone Os. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3439?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-3439 published?: CVE-2011-3439 was published on 2011-11-11 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_desktop:11:sp1:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:*:-:*:*
cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:*:vmware:*:*
cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp1:*:*:*:*:*:*

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