CVE-2007-6166Quicktime Memory Corruption
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.
Published Nov 28, 2007 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2007-6166 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Quicktime (Apple), Safari (Apple).
- It is exploited in the wild, listed in Industry KEV feed since May 1, 2010. Public exploit code is available.
- EPSS estimates a 42% probability of exploitation in the next 30 days.
- Fixed versions are available, including Quicktime 7.3.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
42%
Higher than 98.6% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
63/100
Publication score, see How it works
Exploitation Verdict
KEV listed
May 1, 2010
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
8
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Advisories And Exploit References
- advisory27755
- advisory29182
- advisoryADV-2007-3984
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | May 1, 2010 | n/a | Not reported |
Affected Products
26 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| QuicktimeApple | 3.0, 4.1.2, 5.0, 5.0.1, 5.0.2, 6.0, 6.1, 6.5 | 7.3 |
| SafariApple | See advisory | n/a |
Patched Releases
Quicktime
7.3
Timeline
Publicly disclosed
Nov 28, 2007
Added to Industry KEV feed
May 1, 2010
Last updated
Apr 22, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisory27755
- advisory29182
- advisoryADV-2007-3984
- exploitMSF quicktime_rtsp_content_type.rb
- exploitMSF apple_quicktime_rtsp_response.rb
FAQ
Common Questions.
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.
Affected: Quicktime (Apple) versions 3.0, 4.1.2, 5.0, 5.0.1, 5.0.2, 6.0, 6.1, 6.5; Safari (Apple). The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since May 1, 2010.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Quicktime 7.3.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2007-6166 On Your Attack Surface?
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