How severe is CVE-2011-3845?

CVE-2011-3845 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-2011-3845 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3845?

CVE-2011-3845 affects Apple Safari. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-3845?

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-2011-3845 published?

CVE-2011-3845 was published on 2012-03-08 and last updated on 2026-06-16.

CVE-2011-3845

CVE-2011-3845 is a high-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 7.6. 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-399.

Key facts

Severity: High (CVSS 2.0 base score 7.6)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Apple Safari
Published: 2012-03-08
Last modified: 2026-06-16

Description

Use-after-free vulnerability in Apple Safari 5.1.2, when a plug-in with a blocking function is installed, allows user-assisted remote attackers to execute arbitrary code via a crafted web page that is accessed during user interaction with the plug-in, leading to improper coordination between an API call and the plug-in unloading functionality, as demonstrated by the Adobe Flash and RealPlayer plug-ins.

Frequently asked questions

What is CVE-2011-3845?: Use-after-free vulnerability in Apple Safari 5.1.2, when a plug-in with a blocking function is installed, allows user-assisted remote attackers to execute arbitrary code via a crafted web page that is accessed during user interaction with the plug-in, leading to improper coordination between an API call and the plug-in unloading functionality, as demonstrated by the Adobe Flash and RealPlayer plug-ins.
How severe is CVE-2011-3845?: CVE-2011-3845 has a CVSS 2.0 base score of 7.6, rated high severity.
Is CVE-2011-3845 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3845?: CVE-2011-3845 affects Apple Safari. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-3845?: 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-2011-3845 published?: CVE-2011-3845 was published on 2012-03-08 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:apple:safari:5.1.2:*:*:*:*:*:*:*

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