How severe is CVE-2006-4819?

CVE-2006-4819 has a CVSS 2.0 base score of 5.1, rated medium severity.

Is CVE-2006-4819 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-4819?

CVE-2006-4819 primarily affects Opera Opera Browser. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-4819?

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

When was CVE-2006-4819 published?

CVE-2006-4819 was published on 2006-10-17 and last updated on 2026-06-16.

CVE-2006-4819

CVE-2006-4819 is a medium-severity vulnerability in Opera Opera Browser with a CVSS 2.0 base score of 5.1. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 5.1)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Opera Opera Browser
Published: 2006-10-17
Last modified: 2026-06-16

Description

Heap-based buffer overflow in Opera 9.0 and 9.01 allows remote attackers to execute arbitrary code via a long URL in a tag (long link address).

Frequently asked questions

What is CVE-2006-4819?: Heap-based buffer overflow in Opera 9.0 and 9.01 allows remote attackers to execute arbitrary code via a long URL in a tag (long link address).
How severe is CVE-2006-4819?: CVE-2006-4819 has a CVSS 2.0 base score of 5.1, rated medium severity.
Is CVE-2006-4819 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4819?: CVE-2006-4819 primarily affects Opera Opera Browser. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4819?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4819 published?: CVE-2006-4819 was published on 2006-10-17 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:opera:opera_browser:9.0:*:*:*:*:*:*:*
cpe:2.3:a:opera:opera_browser:9.01:*:*:*:*:*:*:*

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