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CVE-2013-6833

15
FAUCET Score

CVE-2013-6833 describes an information disclosure vulnerability in FreeBSD 10 and earlier, specifically within the qls_eioctl function of the qls_ioctl.c kernel module. A local attacker can exploit a lack of size parameter validation via a crafted ioctl call to read sensitive information from kernel memory. This vulnerability has a CVSS score of 4.9, indicating a low attack complexity and requiring local access, but with a complete confidentiality impact. There is no known public exploit code (Metasploit, Nuclei, ExploitDB), nor is it listed in CISA's KEV catalog, suggesting it is not actively exploited. Community discussion and media coverage are minimal, typical for the vast majority of CVEs.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*
0.4_1CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:0.4_1:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:1.0:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:1.1:*:*:*:*:*:*:*
1.1.5CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:1.1.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
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 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 67th percentile among its peer group of 3,052 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, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

archives.neohapsis.com / archives/fulldisclosure/2013-11/0107.html
ExploitPatch