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CVE-2014-3409

17
FAUCET Score

CVE-2014-3409 is a denial-of-service vulnerability affecting Cisco IOS and IOS XE devices running specific versions of the Ethernet Connectivity Fault Management (CFM) feature. Malformed CFM packets can trigger a device reload, leading to service disruption. With a CVSS score of 6.1, this vulnerability is considered medium severity, requiring adjacent network access but no authentication for exploitation. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 12.2\(33\)sre9aCPE matchmatch criteria
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
<= 3.13sCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.1MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
6.5
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 89th percentile among its peer group of 1,802 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 0.1 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

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

secunia.com / advisories/61799
exchange.xforce.ibmcloud.com / vulnerabilities/97758
tools.cisco.com / security/center/content/CiscoSecurityNotice/CVE-2014-3409
Vendor Advisory
tools.cisco.com / security/center/viewAlert.x
Vendor Advisory
securityfocus.com / bid/70715
Third Party AdvisoryVDB Entry
securitytracker.com / id/1031119
Third Party AdvisoryVDB Entry