How severe is CVE-2012-3691?

CVE-2012-3691 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2012-3691 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3691?

CVE-2012-3691 primarily affects Apple Safari. In total, 102 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3691?

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

When was CVE-2012-3691 published?

CVE-2012-3691 was published on 2012-07-25 and last updated on 2026-06-16.

CVE-2012-3691

CVE-2012-3691 is a medium-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 5.8. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Apple Safari
Published: 2012-07-25
Last modified: 2026-06-16

Description

WebKit in Apple Safari before 6.0 does not properly handle Cascading Style Sheets (CSS) property values, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.

Frequently asked questions

What is CVE-2012-3691?: WebKit in Apple Safari before 6.0 does not properly handle Cascading Style Sheets (CSS) property values, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.
How severe is CVE-2012-3691?: CVE-2012-3691 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2012-3691 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3691?: CVE-2012-3691 primarily affects Apple Safari. In total, 102 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3691?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3691 published?: CVE-2012-3691 was published on 2012-07-25 and last updated on 2026-06-16.

References

Affected products (102)

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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