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.
Conclusion & alert: CVE-2007-4677 is rated High Risk (72.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 69.65%, 99th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-15 | 69.20% | 69.65% | +0.46% |
| 2 | 2026-03-01 | 70.11% | 69.20% | -0.91% |
| 3 | 2025-12-28 | — | 70.11% | — |
Full EPSS history (27 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apple | mac_os_x | 10.3.9 | cpe:2.3:o:apple:mac_os_x:10.3.9:*:*:*:*:*:*:* |
| apple | mac_os_x | 10.4.10 | cpe:2.3:o:apple:mac_os_x:10.4.10:*:*:*:*:*:*:* |
| apple | mac_os_x | 10.5 | cpe:2.3:o:apple:mac_os_x:10.5:*:*:*:*:*:*:* |
| microsoft | windows_vista | — | cpe:2.3:o:microsoft:windows_vista:-:*:*:*:*:*:*:* |
| microsoft | windows_xp | — | cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://docs.info.apple.com/article.html?artnum=306896 | Vendor Advisory |
| http://lists.apple.com/archives/Security-announce/2007/Nov/msg00000.html | Vendor Advisory |
| http://secunia.com/advisories/27523 | Third Party Advisory |
| http://securityreason.com/securityalert/3352 | Third Party Advisory |
| http://www.kb.cert.org/vuls/id/445083 | Third Party Advisory US Government Resource |
| http://www.osvdb.org/38544 | Broken Link |
| http://www.securityfocus.com/archive/1/483312/100/0/threaded | Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/26338 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id?1018894 | Third Party Advisory VDB Entry |
| http://www.us-cert.gov/cas/techalerts/TA07-310A.html | Third Party Advisory US Government Resource |
| http://www.vupen.com/english/advisories/2007/3723 | Third Party Advisory |
| http://www.zerodayinitiative.com/advisories/ZDI-07-065.html | Third Party Advisory VDB Entry |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/38283 | Third Party Advisory VDB Entry |