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CVE-2014-3409
The Ethernet Connectivity Fault Management (CFM) handling feature in Cisco IOS 12.2(33)SRE9a and earlier and IOS XE 3.13S and earlier…
- 6.1MediumCVSS base score
- 1.0%Exploitation in 30 daysEPSS · top 37% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Ethernet Connectivity Fault Management (CFM) handling feature in Cisco IOS 12.2(33)SRE9a and earlier and IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (device reload) via malformed CFM packets, aka Bug ID CSCuq93406.
Timeline
ID reserved
By cisco
- 6 months later
· 6 months later
Published
- 10 years later
· 10 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.1 | AV:A/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 1.0% · top 37% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Affected products
n/a
- affected n/a
References
6
- 61799 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1031119 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 70715 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20141024 Cisco IOS and IOS XE Software Ethernet Connectivity Fault Management Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- ciscoios-xe-cve20143409-dos(97758) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://tools.cisco.com/security/center/viewAlert.x?alertId=36184 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2014-3422 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2014-3409)Record last updated .