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CVE-2018-0209

24
FAUCET Score

CVE-2018-0209 is a denial-of-service vulnerability affecting Cisco 550X Series Stackable Managed Switches, stemming from insufficient input throttling of SNMP traffic. An authenticated, remote attacker can exploit this by sending a crafted, heavy stream of SNMP requests, causing the device to unexpectedly reload and require manual recovery. Rated High with a CVSS score of 7.7, this vulnerability has a network attack vector, low attack complexity, and a high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.5.68CPE matchmatch criteria
cpe:2.3:o:cisco:small_business_500_series_stackable_managed_switches_firmware:2.2.5.68:*:*:*:*:*:*:*
2.3.0.130CPE matchmatch criteria
cpe:2.3:o:cisco:small_business_500_series_stackable_managed_switches_firmware:2.3.0.130:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 71st percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-550x
Vendor Advisory
securityfocus.com / bid/103406
Third Party AdvisoryVDB Entry