CVE-2007-6166

CVE-2007-6166 is a critical-severity vulnerability in Apple Quicktime with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 42% 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: 42% (99th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Apple Quicktime
• Published: 2007-11-29
• Last modified: 2026-06-16

Description

Stack-based buffer overflow in Apple QuickTime before 7.3.1, as used in QuickTime Player on Windows XP and Safari on Mac OS X, allows remote Real Time Streaming Protocol (RTSP) servers to execute arbitrary code via an RTSP response with a long Content-Type header.

Frequently asked questions

What is CVE-2007-6166?

Stack-based buffer overflow in Apple QuickTime before 7.3.1, as used in QuickTime Player on Windows XP and Safari on Mac OS X, allows remote Real Time Streaming Protocol (RTSP) servers to execute arbitrary code via an RTSP response with a long Content-Type header.

How severe is CVE-2007-6166?

CVE-2007-6166 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-6166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 42% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-6166?

CVE-2007-6166 primarily affects Apple Quicktime. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-6166?

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-2007-6166 published?

CVE-2007-6166 was published on 2007-11-29 and last updated on 2026-06-16.

References

• http://docs.info.apple.com/article.html?artnum=307176
• http://lists.apple.com/archives/Security-announce/2007/Dec/msg00000.html
• http://secunia.com/advisories/27755
• http://secunia.com/advisories/29182
• http://security.gentoo.org/glsa/glsa-200803-08.xml
• http://securityreason.com/securityalert/3410
• http://www.beskerming.com/security/2007/11/25/74/QuickTime_-_Remote_hacker_automatic_control
• http://www.kb.cert.org/vuls/id/659761
• http://www.securityfocus.com/bid/26549
• http://www.securityfocus.com/bid/26560
• http://www.securitytracker.com/id?1018989
• http://www.us-cert.gov/cas/techalerts/TA07-334A.html
• http://www.vupen.com/english/advisories/2007/3984
• https://exchange.xforce.ibmcloud.com/vulnerabilities/38604
• https://www.exploit-db.com/exploits/4648
• https://www.exploit-db.com/exploits/6013

Affected products (26)

• cpe:2.3:a:apple:quicktime:*:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:-:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:3.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:4.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:5.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:5.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:5.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:6.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:6.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:6.5:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:6.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:6.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:apple:quicktime:7.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*

More vulnerabilities in Apple Quicktime

• CVE-2007-6238 — Critical (CVSS 10.0): Unspecified vulnerability in Apple QuickTime 7.2 on Windows XP allows remote attackers to execute arbitrary code via…
• CVE-2007-0462 — Critical (CVSS 10.0): The _GetSrcBits32ARGB function in Apple QuickDraw, as used by Quicktime 7.1.3 and other applications on Mac OS X 10.4.8…
• CVE-2011-3428 — Critical (CVSS 9.8): Buffer overflow in QuickTime before 7.7.1 for Windows allows remote attackers to execute arbitrary code.
• CVE-2014-4979 — Critical (CVSS 9.3): Apple QuickTime allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via…
• CVE-2014-1251 — Critical (CVSS 9.3): Buffer overflow in Apple QuickTime before 7.7.5 allows remote attackers to execute arbitrary code or cause a denial of…
• CVE-2014-1250 — Critical (CVSS 9.3): Apple QuickTime before 7.7.5 does not properly perform a byte-swapping operation, which allows remote attackers to…

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