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CVE-2006-3634

15
FAUCET Score

CVE-2006-3634 describes a denial-of-service vulnerability in Linux kernel versions 2.6.17-rc4 through 2.6.18-rc2. Specifically, the futex_atomic_op and futex_atomic_cmpxchg_inatomic functions incorrectly perform atomic futex operations in the kernel address space instead of the user address space. This flaw allows local users to crash the system, resulting in a complete loss of availability. The vulnerability has a CVSS score of 4.9, indicating a low attack complexity and requiring local access, but with a high impact on system availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.17:rc4:*:*:*:*:*:*
2.6.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.17:rc5:*:*:*:*:*:*
2.6.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.17:rc6:*:*:*:*:*:*
2.6.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.18:rc1:*:*:*:*:*:*
2.6.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.18:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 37th percentile among its peer group of 3,052 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 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

security-tracker.debian.org / tracker/CVE-2006-3634
kernel.org / git