How severe is CVE-2010-4582?

CVE-2010-4582 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2010-4582 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4582?

CVE-2010-4582 primarily affects Opera Opera Browser. In total, 112 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4582?

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

When was CVE-2010-4582 published?

CVE-2010-4582 was published on 2010-12-22 and last updated on 2026-06-16.

CVE-2010-4582

CVE-2010-4582 is a medium-severity vulnerability in Opera Opera Browser 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Opera Opera Browser
Published: 2010-12-22
Last modified: 2026-06-16

Description

Opera before 11.00 does not properly handle security policies during updates to extensions, which might allow remote attackers to bypass intended access restrictions via unspecified vectors.

Frequently asked questions

What is CVE-2010-4582?: Opera before 11.00 does not properly handle security policies during updates to extensions, which might allow remote attackers to bypass intended access restrictions via unspecified vectors.
How severe is CVE-2010-4582?: CVE-2010-4582 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2010-4582 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4582?: CVE-2010-4582 primarily affects Opera Opera Browser. In total, 112 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4582?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4582 published?: CVE-2010-4582 was published on 2010-12-22 and last updated on 2026-06-16.

References

Affected products (112)

cpe:2.3:a:opera:opera_browser:*:beta:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.0:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.0:beta2:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.0:beta3:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.0:beta4:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.0:beta5:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.0:beta6:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.0:beta7:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.0:beta8:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.02:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.10:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.11:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:5.12:*:*:*:*:*:*:*
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:tp1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.0:tp2:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.0:tp3:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.1:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.01:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.1:beta1:*:*:*:*:*:*
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:6.04:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.05:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.06:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.11:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:6.12:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.0:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.0:beta1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.0:beta1_v2:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.0:beta2:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.01:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.02:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.03:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.10:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.10:beta1:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.11:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:7.11:beta2:*:*:*:*:*:*

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