How severe is CVE-2012-3559?

CVE-2012-3559 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2012-3559 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3559?

CVE-2012-3559 primarily affects Opera Opera Browser. In total, 81 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3559?

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-2012-3559 published?

CVE-2012-3559 was published on 2012-06-14 and last updated on 2026-06-16.

CVE-2012-3559

CVE-2012-3559 is a critical-severity vulnerability in Opera Opera Browser with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Opera Opera Browser
Published: 2012-06-14
Last modified: 2026-06-16

Description

Unspecified vulnerability in Opera before 12.00 on Mac OS X has unknown impact and attack vectors, related to a "moderate severity issue."

Frequently asked questions

What is CVE-2012-3559?: Unspecified vulnerability in Opera before 12.00 on Mac OS X has unknown impact and attack vectors, related to a "moderate severity issue."
How severe is CVE-2012-3559?: CVE-2012-3559 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2012-3559 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3559?: CVE-2012-3559 primarily affects Opera Opera Browser. In total, 81 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3559?: 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-2012-3559 published?: CVE-2012-3559 was published on 2012-06-14 and last updated on 2026-06-16.

References

http://www.opera.com/docs/changelogs/mac/1200/

Affected products (81)

cpe:2.3:a:opera:opera_browser:*:beta:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.0:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.0:beta1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.0:beta2:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.0:beta3:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.02:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.03:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.50:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.50:beta1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.51:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.52:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.53:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.54:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.54:update1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.54:update2:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:8.0:beta1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:8.01:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:8.02:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:8.50:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:8.51:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:8.52:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:8.54:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.0:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.0:beta1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.0:beta2:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.01:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.02:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.10:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.20:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.20:beta1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.21:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.22:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.23:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.24:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.25:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.26:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.27:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.50:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.50:beta1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.50:beta2:*:*:*:*:*:*

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