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CVE-2009-1041

30
FAUCET Score

CVE-2009-1041 describes a critical vulnerability in the ktimer feature of FreeBSD versions 7.0, 7.1, and 7.2. This flaw allows local users to achieve arbitrary kernel memory overwrite due to an out-of-bounds timer value. With a CVSS score of 7.2, this vulnerability presents a high risk, enabling local privilege escalation with low attack complexity and leading to complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, exploit code is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:7.0:pre-release:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:7.0:release:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:7.0:release-p8:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:7.0:release-p9:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.78%
Probability of exploitation in next 30 days
EPSS Percentile
52.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-8261 · Mar 23, 2009
This CVE's current EPSS score of 0.0078 is in the 72nd percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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

Remediation records are not available for this CVE.

References

security.freebsd.org / advisories/FreeBSD-SA-09:06.ktimer.asc
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/49362
exploit-db.com / exploits/8261
securityfocus.com / bid/34196
securitytracker.com / id