Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2009-2849

15
FAUCET Score

CVE-2009-2849 describes a potential denial-of-service vulnerability in the Linux kernel, specifically affecting versions prior to 2.6.30.2, within the md driver. This flaw, a NULL pointer dereference, can be triggered by local attackers manipulating "suspend_* sysfs attributes" through the suspend_lo_store or suspend_hi_store functions, provided sysfs is writable. The vulnerability has a CVSS score of 4.7, indicating a medium severity with local access, medium attack complexity, and a complete impact on availability. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.30.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
2.6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:*
2.6.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.7MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 73rd percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (2)

redhatpatch availablevia redhat_api
Product: MRG for RHEL-5Fixed in: kernel-rt-0:2.6.24.7-137.el5rt
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-164.2.1.el5
View patch

Vendor Advisories (1)

redhatCVE-2009-2849Moderate

kernel: md: NULL pointer deref when accessing suspend_* sysfs attributes

Jul 1, 2009

References

git.kernel.org
lists.vmware.com / pipermail/security-announce/2010/000082.html
secunia.com / advisories/36501
secunia.com / advisories/37105
secunia.com / advisories/38794
secunia.com / advisories/38834
exchange.xforce.ibmcloud.com / vulnerabilities/52858
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10396
rhn.redhat.com / errata/RHSA-2009-1540.html
redhat.com / archives/fedora-package-announce/2009-August/msg01256.html
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.30.2
openwall.com / lists/oss-security/2009/07/24/1
openwall.com / lists/oss-security/2009/07/26/1
securitytracker.com / id
ubuntu.com / usn/USN-852-1
vupen.com / english/advisories/2010/0528
xorl.wordpress.com / 2009/07/21/linux-kernel-md-driver-null-pointer-dereference
Exploit