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CVE-2014-3676

27
FAUCET Score

CVE-2014-3676 describes a heap-based buffer overflow in Red Hat Shim, enabling remote attackers to execute arbitrary code through a specially crafted IPv6 address during the DHCPv6 boot option. With a CVSS score of 7.5, this vulnerability is considered highly severe, requiring no authentication and having low attack complexity, potentially leading to partial compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, no public exploit code available (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.3, < 0.8CPE matchmatch criteria
cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.23%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0523 is in the 85th percentile among its peer group of 51,485 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: shim-0:0.7-8.el7_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: shim-signed-0:0.7-8.el7_0
View patch

Vendor Advisories (1)

redhatCVE-2014-3676Moderate

shim: heap-based buffer overflow flaw in IPv6 address parsing

Oct 13, 2014

References

rhn.redhat.com / errata/RHSA-2014-1801.html
Broken Link
exchange.xforce.ibmcloud.com / vulnerabilities/96988
Third Party AdvisoryVDB Entry
openwall.com / lists/oss-security/2014/10/13/4
ExploitMailing List
securityfocus.com / bid/70409
Third Party AdvisoryVDB Entry