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-2012-6657

18
FAUCET Score

CVE-2012-6657 describes a denial-of-service vulnerability in the Linux kernel (before version 3.5.7), specifically affecting the sock_setsockopt function. A local attacker can exploit this flaw by creating a raw socket, leading to a system crash. With a CVSS score of 4.9 (AV:L/AC:L/Au:N/C:N/I:N/A:C), this vulnerability has low attack complexity but can result in a complete system unavailability. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.5.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.5.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.5.1:*:*:*:*:*:*:*
3.5.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.5.2:*:*:*:*:*:*:*
3.5.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.5.3:*:*:*:*:*:*:*
3.5.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.5.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.53%
Probability of exploitation in next 30 days
EPSS Percentile
41.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0053 is in the 78th percentile among its peer group of 3,050 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-504.3.3.el6
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2012-6657Low

Kernel: net: guard tcp_set_keepalive against crash

Sep 24, 2012

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2015-04/msg00000.html
lists.opensuse.org / opensuse-security-announce/2015-04/msg00020.html
marc.info
marc.info
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/3e10986d1d698140747fcfc2761ec9cb64c1d582
Exploit
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.5.7
Vendor Advisory
openwall.com / lists/oss-security/2014/09/15/8