CVE-2006-4390

CVE-2006-4390 is a low-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 2.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

CFNetwork in Apple Mac OS X 10.4 through 10.4.7 and 10.3.9 allows remote SSL sites to appear as trusted sites by using encryption without authentication, which can cause the lock icon in Safari to be displayed even when the site's identity cannot be trusted.

Frequently asked questions

What is CVE-2006-4390?
CFNetwork in Apple Mac OS X 10.4 through 10.4.7 and 10.3.9 allows remote SSL sites to appear as trusted sites by using encryption without authentication, which can cause the lock icon in Safari to be displayed even when the site's identity cannot be trusted.
How severe is CVE-2006-4390?
CVE-2006-4390 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2006-4390 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4390?
CVE-2006-4390 primarily affects Apple Mac Os X. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-4390?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-4390 published?
CVE-2006-4390 was published on 2006-10-03 and last updated on 2026-06-16.

References

Affected products (9)

More vulnerabilities in Apple Mac Os X

All CVEs affecting Apple Mac Os X →