How severe is CVE-2009-1042?

CVE-2009-1042 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-1042 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-2009-1042?

CVE-2009-1042 affects Apple Safari. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1042?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2009-1042 published?

CVE-2009-1042 was published on 2009-03-23 and last updated on 2026-06-16.

CVE-2009-1042

CVE-2009-1042 is a critical-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apple Safari
Published: 2009-03-23
Last modified: 2026-06-16

Description

Unspecified vulnerability in Apple Safari on Mac OS X 10.5.6 allows remote attackers to execute arbitrary code via unknown vectors triggered by clicking on a link, as demonstrated by Nils during a PWN2OWN competition at CanSecWest 2009.

Frequently asked questions

What is CVE-2009-1042?: Unspecified vulnerability in Apple Safari on Mac OS X 10.5.6 allows remote attackers to execute arbitrary code via unknown vectors triggered by clicking on a link, as demonstrated by Nils during a PWN2OWN competition at CanSecWest 2009.
How severe is CVE-2009-1042?: CVE-2009-1042 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-1042 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-2009-1042?: CVE-2009-1042 affects Apple Safari. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1042?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-1042 published?: CVE-2009-1042 was published on 2009-03-23 and last updated on 2026-06-16.

References

Affected products (1)

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

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