CVE-2011-2628

CVE-2011-2628 is a critical-severity vulnerability in Opera Opera Browser with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Description

Opera before 11.11 does not properly implement FRAMESET elements, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to page unload.

Frequently asked questions

What is CVE-2011-2628?
Opera before 11.11 does not properly implement FRAMESET elements, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to page unload.
How severe is CVE-2011-2628?
CVE-2011-2628 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2011-2628 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2628?
CVE-2011-2628 primarily affects Opera Opera Browser. In total, 118 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2628?
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-2011-2628 published?
CVE-2011-2628 was published on 2011-07-01 and last updated on 2026-06-16.

References

Affected products (118)

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