How severe is CVE-2007-3742?

CVE-2007-3742 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2007-3742 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3742?

CVE-2007-3742 affects Apple Safari. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-3742?

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

When was CVE-2007-3742 published?

CVE-2007-3742 was published on 2007-08-03 and last updated on 2026-06-16.

CVE-2007-3742

CVE-2007-3742 is a medium-severity vulnerability in Apple Safari 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-16.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-16
Affected product: Apple Safari
Published: 2007-08-03
Last modified: 2026-06-16

Description

WebKit in Apple Safari 3 Beta before Update 3.0.3, and iPhone before 1.0.1, does not properly handle the interaction between International Domain Name (IDN) support and Unicode fonts, which allows remote attackers to create a URL containing "look-alike characters" (homographs) and possibly perform phishing attacks.

Frequently asked questions

What is CVE-2007-3742?: WebKit in Apple Safari 3 Beta before Update 3.0.3, and iPhone before 1.0.1, does not properly handle the interaction between International Domain Name (IDN) support and Unicode fonts, which allows remote attackers to create a URL containing "look-alike characters" (homographs) and possibly perform phishing attacks.
How severe is CVE-2007-3742?: CVE-2007-3742 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-3742 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3742?: CVE-2007-3742 affects Apple Safari. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-3742?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-3742 published?: CVE-2007-3742 was published on 2007-08-03 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:apple:safari:*:*:windows:*:*:*:*:*

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