Is CVE-2007-6261 being actively exploited?

CVE-2007-6261 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2007-6261?

CVE-2007-6261 has a CVSS 2.0 base score of 4.9 (MEDIUM).

CVE-2007-6261

MEDIUM · CVSS 4.9EPSS 0.8%EU EUVD

Integer overflow in the load_threadstack function in the Mach-O loader (mach_loader.c) in the xnu kernel in Apple Mac OS X 10.4 through 10.5.1 allows local users to cause a denial of service (infinite loop) via a crafted Mach-O binary.

Key facts

CVSS score: 4.9 (v2.0)
Severity: MEDIUM
CVSS vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-189
EPSS score: 0.8% (56th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2007-6229)
Published: December 6, 2007
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2007-6229 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

apple / mac os x
apple / mac os x

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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