How severe is CVE-2011-3242?

CVE-2011-3242 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-3242 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-2011-3242?

CVE-2011-3242 primarily affects Apple Safari. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3242?

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

When was CVE-2011-3242 published?

CVE-2011-3242 was published on 2011-10-14 and last updated on 2026-06-16.

CVE-2011-3242

CVE-2011-3242 is a medium-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 5.0. 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-200.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Apple Safari
Published: 2011-10-14
Last modified: 2026-06-16

Description

The Private Browsing feature in Apple Safari before 5.1.1 on Mac OS X does not properly recognize the Always value of the Block Cookies setting, which makes it easier for remote web servers to track users via a cookie.

Frequently asked questions

What is CVE-2011-3242?: The Private Browsing feature in Apple Safari before 5.1.1 on Mac OS X does not properly recognize the Always value of the Block Cookies setting, which makes it easier for remote web servers to track users via a cookie.
How severe is CVE-2011-3242?: CVE-2011-3242 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-3242 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-2011-3242?: CVE-2011-3242 primarily affects Apple Safari. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3242?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3242 published?: CVE-2011-3242 was published on 2011-10-14 and last updated on 2026-06-16.

References

Affected products (96)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0:beta:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0:beta2:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.0b1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.0b2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.3:85.8:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.3:85.8.1:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0b1:-:mac:*:*:*:*:*
cpe:2.3:a:apple:safari:1.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.2:312.5:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.2:312.6:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:417.8:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:417.9:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:417.9.2:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:417.9.3:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.4:*:*:*:*:*:*:*

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