How severe is CVE-2007-4677?

CVE-2007-4677 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-4677 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 47% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4677?

CVE-2007-4677 primarily affects Apple Mac Os X. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4677?

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-2007-4677 published?

CVE-2007-4677 was published on 2007-11-07 and last updated on 2026-06-16.

CVE-2007-4677

CVE-2007-4677 is a critical-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 47% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 47% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Apple Mac Os X
Published: 2007-11-07
Last modified: 2026-06-16

Description

Heap-based buffer overflow in Apple QuickTime before 7.3 allows remote attackers to execute arbitrary code via an invalid color table size when parsing the color table atom (CTAB) in a movie file, related to the CTAB RGB values.

Frequently asked questions

What is CVE-2007-4677?: Heap-based buffer overflow in Apple QuickTime before 7.3 allows remote attackers to execute arbitrary code via an invalid color table size when parsing the color table atom (CTAB) in a movie file, related to the CTAB RGB values.
How severe is CVE-2007-4677?: CVE-2007-4677 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-4677 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 47% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4677?: CVE-2007-4677 primarily affects Apple Mac Os X. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4677?: 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-2007-4677 published?: CVE-2007-4677 was published on 2007-11-07 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:o:apple:mac_os_x:10.3.9:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.4.10:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.5:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*

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