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CVE-2007-6434

11
FAUCET Score

CVE-2007-6434 describes a vulnerability in Linux kernel version 2.6.23 that allows local users to bypass mmap_min_addr protection. This is achieved by crafting an executable file that calls the do_brk function, enabling the creation of low pages in virtual userspace memory. The vulnerability has a low severity CVSS score of 2.1, indicating a local attack vector with low complexity, requiring no authentication, and resulting in only partial availability impact. There is no evidence of active exploitation, no known exploit code in Metasploit or ExploitDB, and minimal community discussion or media coverage, suggesting it is not a widely recognized or exploited threat.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.23CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.23:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 66th percentile among its peer group of 2,096 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 0.6 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

Vendor Advisories (1)

redhatCVE-2007-6434Important

VM/Security: add security hook to do_brk

Dec 4, 2007

References

kernel.org / pub/linux/kernel/v2.6/testing/ChangeLog-2.6.24-rc5
Exploit
osvdb.org / 40907
secunia.com / advisories/28070
Vendor Advisory
securityfocus.com / bid/26831
vupen.com / english/advisories/2007/4200