How severe is CVE-2009-0123?

CVE-2009-0123 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2009-0123 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0123?

CVE-2009-0123 affects Apple Safari. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-0123?

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-2009-0123 published?

CVE-2009-0123 was published on 2009-01-15 and last updated on 2026-06-16.

CVE-2009-0123

CVE-2009-0123 is a high-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 7.1. 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-200.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Apple Safari
Published: 2009-01-15
Last modified: 2026-06-16

Description

Unspecified vulnerability in Apple Safari on Mac OS X 10.5 and Windows allows remote attackers to read arbitrary files on a client machine via vectors related to the association of Safari with the (1) feed, (2) feeds, and (3) feedsearch URL types for RSS feeds. NOTE: as of 20090114, the only disclosure is a vague pre-advisory. However, because it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.

Frequently asked questions

What is CVE-2009-0123?: Unspecified vulnerability in Apple Safari on Mac OS X 10.5 and Windows allows remote attackers to read arbitrary files on a client machine via vectors related to the association of Safari with the (1) feed, (2) feeds, and (3) feedsearch URL types for RSS feeds. NOTE: as of 20090114, the only disclosure is a vague pre-advisory. However, because it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.
How severe is CVE-2009-0123?: CVE-2009-0123 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2009-0123 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0123?: CVE-2009-0123 affects Apple Safari. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-0123?: 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-2009-0123 published?: CVE-2009-0123 was published on 2009-01-15 and last updated on 2026-06-16.

References

Affected products (1)

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

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