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CVE-2007-1221

19
FAUCET Score

CVE-2007-1221 describes a critical vulnerability in the Microsoft Xbox 360 hypervisor (kernel versions 4532 and 4548). An attacker with physical access could exploit this by forcing a specific hypervisor syscall execution with a crafted register set, bypassing code protection mechanisms. This vulnerability carries a high severity CVSS score of 7.2, indicating a local attack vector with low complexity, leading to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4532CPE matchmatch criteria
cpe:2.3:h:microsoft:xbox_360:4532:*:*:*:*:*:*:*
4548CPE matchmatch criteria
cpe:2.3:h:microsoft:xbox_360:4548:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0170 is in the 90th percentile among its peer group of 3,237 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securityreason.com / securityalert/2367
securityfocus.com / archive/1/461489/100/0/threaded
securityfocus.com / archive/1/463974/100/200/threaded
securityfocus.com / bid/22745