How severe is CVE-2009-1600?

CVE-2009-1600 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-1600 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1600?

CVE-2009-1600 affects Apple Safari. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1600?

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-2009-1600 published?

CVE-2009-1600 was published on 2009-05-11 and last updated on 2026-06-16.

CVE-2009-1600

CVE-2009-1600 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. The underlying weakness is classified as CWE-264.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Apple Safari
Published: 2009-05-11
Last modified: 2026-06-16

Description

Apple Safari executes DOM calls in response to a javascript: URI in the target attribute of a submit element within a form contained in an inline PDF file, which might allow remote attackers to bypass intended Adobe Acrobat JavaScript restrictions on accessing the document object, as demonstrated by a web site that permits PDF uploads by untrusted users, and therefore has a shared document.domain between the web site and this javascript: URI. NOTE: the researcher reports that Adobe's position is "a PDF file is active content."

Frequently asked questions

What is CVE-2009-1600?: Apple Safari executes DOM calls in response to a javascript: URI in the target attribute of a submit element within a form contained in an inline PDF file, which might allow remote attackers to bypass intended Adobe Acrobat JavaScript restrictions on accessing the document object, as demonstrated by a web site that permits PDF uploads by untrusted users, and therefore has a shared document.domain between the web site and this javascript: URI. NOTE: the researcher reports that Adobe's position is "a PDF file is active content."
How severe is CVE-2009-1600?: CVE-2009-1600 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-1600 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1600?: CVE-2009-1600 affects Apple Safari. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1600?: 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-2009-1600 published?: CVE-2009-1600 was published on 2009-05-11 and last updated on 2026-06-16.

References

Affected products (1)

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

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