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CVE-2016-6473

24
FAUCET Score

CVE-2016-6473 is a vulnerability in Cisco IOS on Catalyst Switches and Nexus 9300 Series Switches that allows an unauthenticated, adjacent attacker to trigger a Layer 2 network storm. This medium-severity vulnerability has a CVSS score of 6.5, indicating an attack vector that requires adjacent network access with low attack complexity, leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE. Organizations should prioritize patching affected Cisco IOS versions to mitigate the risk of network disruption.

Impacted Technologies

VendorProductVersion(s)CPE
15.0\(2\)se8CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.0\(2\)se8:*:*:*:*:*:*:*
15.2\(2\)e1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2\(2\)e1:*:*:*:*:*:*:*
15.2\(2\)e2CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2\(2\)e2:*:*:*:*:*:*:*
15.2\(2a\)e1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2\(2a\)e1:*:*:*:*:*:*:*
15.2\(3\)eCPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.2\(3\)e:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.64%
Probability of exploitation in next 30 days
EPSS Percentile
47.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0064 is in the 74th percentile among its peer group of 1,802 CVEs.

Social Chatter

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

ciscoworkaround availablevia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-ios
MitigationVendor Advisory
securityfocus.com / bid/94815
Third Party AdvisoryVDB Entry