CVE-2011-1337

CVE-2011-1337 is a medium-severity vulnerability in Opera Opera Browser with a CVSS 2.0 base score of 4.3. 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-399.

Key facts

Description

Opera before 11.50 allows remote attackers to cause a denial of service (disk consumption) via invalid URLs that trigger creation of error pages.

Frequently asked questions

What is CVE-2011-1337?
Opera before 11.50 allows remote attackers to cause a denial of service (disk consumption) via invalid URLs that trigger creation of error pages.
How severe is CVE-2011-1337?
CVE-2011-1337 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-1337 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1337?
CVE-2011-1337 primarily affects Opera Opera Browser. In total, 121 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1337?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1337 published?
CVE-2011-1337 was published on 2011-07-01 and last updated on 2026-06-16.

References

Affected products (121)

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