What is CVE-2014-3676?

CVE-2014-3676 is a vulnerability in Red Hat Shim, classified under Out-of-bounds Write. Published 2014-10-22.

Is CVE-2014-3676 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Red Hat Shim

CVE-2014-3676

Heap-based buffer overflow in Shim allows remote attackers to execute arbitrary code via a crafted IPv6 address, related to the "tftp:// DHCPv6 boot option."

Vulnerability class: Buffer Overflow

Published 2014-10-22 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.052 (92.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.052 · newest: 0.052 · change: 0.000

Affected products

Red Hat Shim

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

c-skills/CVEs

References

www.openwall.com/lists/oss-security/2014/10/13/4 (mailing-list, Exploit, Mailing List)
www.securityfocus.com/bid/70409 (VDB Entry, Third Party Advisory, vdb-entry)
rhn.redhat.com/errata/RHSA-2014-1801.html (vendor-advisory, Broken Link)
exchange.xforce.ibmcloud.com/vulnerabilities/96988 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2014-3676?: CVE-2014-3676 is a vulnerability in Red Hat Shim, classified under Out-of-bounds Write. Published 2014-10-22.
Is CVE-2014-3676 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.