How severe is CVE-2007-2401?

CVE-2007-2401 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2007-2401 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-2401?

CVE-2007-2401 primarily affects Apple Mac Os X. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-2401?

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

When was CVE-2007-2401 published?

CVE-2007-2401 was published on 2007-06-25 and last updated on 2026-06-16.

CVE-2007-2401

CVE-2007-2401 is a medium-severity vulnerability in Apple Mac Os X 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-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Apple Mac Os X
Published: 2007-06-25
Last modified: 2026-06-16

Description

CRLF injection vulnerability in WebCore in Apple Mac OS X 10.3.9, 10.4.9 and later, and iPhone before 1.0.1, allows remote attackers to inject arbitrary HTTP headers via LF characters in an XMLHttpRequest request, which are not filtered when serializing headers via the setRequestHeader function. NOTE: this issue can be leveraged for cross-site scripting (XSS) attacks.

Frequently asked questions

What is CVE-2007-2401?: CRLF injection vulnerability in WebCore in Apple Mac OS X 10.3.9, 10.4.9 and later, and iPhone before 1.0.1, allows remote attackers to inject arbitrary HTTP headers via LF characters in an XMLHttpRequest request, which are not filtered when serializing headers via the setRequestHeader function. NOTE: this issue can be leveraged for cross-site scripting (XSS) attacks.
How severe is CVE-2007-2401?: CVE-2007-2401 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-2401 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2401?: CVE-2007-2401 primarily affects Apple Mac Os X. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-2401?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-2401 published?: CVE-2007-2401 was published on 2007-06-25 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:o:apple:mac_os_x:10.3.9:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.9:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.3.9:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.4.9:*:*:*:*:*:*:*

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