CVE-2006-6991

CVE-2006-6991 is a high-severity vulnerability in Fast Browser with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Cross-domain vulnerability in Fast Browser Pro 8.1 allows remote attackers to access restricted information from other domains via an object tag with a data parameter that references a link on the attacker's originating site that specifies a Location HTTP header that references the target site, which then makes that content available through the outerHTML attribute of the object, a similar vulnerability to CVE-2006-3280.

Frequently asked questions

What is CVE-2006-6991?
Cross-domain vulnerability in Fast Browser Pro 8.1 allows remote attackers to access restricted information from other domains via an object tag with a data parameter that references a link on the attacker's originating site that specifies a Location HTTP header that references the target site, which then makes that content available through the outerHTML attribute of the object, a similar vulnerability to CVE-2006-3280.
How severe is CVE-2006-6991?
CVE-2006-6991 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2006-6991 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6991?
CVE-2006-6991 affects Fast Browser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-6991?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2006-6991 published?
CVE-2006-6991 was published on 2007-02-09 and last updated on 2026-06-16.

References

Affected products (1)