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CVE-2012-6540

12
FAUCET Score

CVE-2012-6540 describes an information disclosure vulnerability in the Linux kernel (before version 3.6) affecting the do_ip_vs_get_ctl function. A local attacker can exploit this by sending a crafted IP_VS_SO_GET_TIMEOUT command, leading to the leakage of sensitive data from kernel stack memory due to an uninitialized structure. With a CVSS score of 1.9 (low severity), this vulnerability requires local access and medium attack complexity, resulting in a partial confidentiality impact without affecting integrity or availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.5.7CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

1.9LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
28.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 61st percentile among its peer group of 747 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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-2012-6540Low

Kernel: ipvs: information leak in getsockopt(IP_VS_SO_GET_TIMEOUT)

Aug 15, 2012

References

git.kernel.org
github.com / torvalds/linux/commit/2d8a041b7bfe1097af21441cb77d6af95f4f4680
kernel.org / pub/linux/kernel/v3.x/patch-3.6.bz2
Patch
openwall.com / lists/oss-security/2013/03/05/13
ubuntu.com / usn/USN-1792-1
ubuntu.com / usn/USN-1798-1