How severe is CVE-2007-4676?

CVE-2007-4676 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-4676 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-2007-4676?

CVE-2007-4676 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-2007-4676?

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-2007-4676 published?

CVE-2007-4676 was published on 2007-11-07 and last updated on 2026-06-16.

CVE-2007-4676

CVE-2007-4676 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 malformed elements when parsing (1) Poly type (0x0070 through 0x0074) and (2) PackBitsRgn field (0x0099) opcodes in a PICT image.

Frequently asked questions

What is CVE-2007-4676?: Heap-based buffer overflow in Apple QuickTime before 7.3 allows remote attackers to execute arbitrary code via malformed elements when parsing (1) Poly type (0x0070 through 0x0074) and (2) PackBitsRgn field (0x0099) opcodes in a PICT image.
How severe is CVE-2007-4676?: CVE-2007-4676 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-4676 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-2007-4676?: CVE-2007-4676 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-2007-4676?: 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-2007-4676 published?: CVE-2007-4676 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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