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CVE-2007-3850

11
FAUCET Score

CVE-2007-3850 describes a vulnerability in the eHCA driver of the Linux kernel (versions prior to 2.6.22) on PowerPC systems, allowing local users to read portions of physical memory due to improper mapping of userspace resources. With a CVSS score of 1.9, this vulnerability is considered low severity, requiring local access and moderate attack complexity to achieve a partial confidentiality impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.21CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

1.9LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 44th percentile among its peer group of 747 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, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-8.1.15.el5
View patch

Vendor Advisories (1)

redhatCVE-2007-3850Moderate

kernel LTC31426-4k page mapping support for userspace in 64k kernels

Apr 3, 2007

References

git.kernel.org
osvdb.org / 45488
rhn.redhat.com / errata/RHSA-2007-0940.html
Patch
secunia.com / advisories/27322
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10793
securityfocus.com / bid/26161