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CVE-2009-2844

23
FAUCET Score

CVE-2009-2844 is a denial-of-service vulnerability affecting the cfg80211 component in Linux kernel versions before 2.6.31-rc6. Remote attackers can trigger a system crash by sending a specific sequence of malformed 802.11 beacon frames that cause a NULL pointer dereference. This vulnerability has a CVSS score of 7.8, indicating high severity, with a network attack vector, low attack complexity, and a complete impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.24.7CPE matchmatch criteria
cpe:2.3:a:linux:kernel:2.6.24.7:*:*:*:*:*:*:*
2.6.25.15CPE matchmatch criteria
cpe:2.3:a:linux:kernel:2.6.25.15:*:*:*:*:*:*:*
<= 2.6.16.31CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:-rc5:*:*:*:*:*:*
2.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6:*:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.36%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0336 is in the 78th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Vendor Advisories (1)

redhatCVE-2009-2844

CVE-2009-2844: Vulnerabilities in the kernel

References

git.kernel.org
jon.oberheide.org / files/cfg80211-remote-dos.c
Patch
secunia.com / advisories/36278
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.30.5
openwall.com / lists/oss-security/2009/08/17/1
Patch
openwall.com / lists/oss-security/2009/08/17/2
Patch
securityfocus.com / bid/36052