Cisco Cisco 550X Series Stackable Managed Switches

Name: Cisco Cisco 550X Series Stackable Managed Switches
Brand: Cisco

productEU

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

KEV-listed

by severity

1critical2high3medium0low

updated 2026-10-28

vulnerabilities (6)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2018-15439US	critical9.8OT high	49.7% (99th)	Exploit	no fix	2018-11-08	—
CVE-2019-1806US	high7.7	2.05% (81st)	—	2.5.0.78	2019-05-15	3 versions
CVE-2018-0209US	high7.7	1.58% (75th)	—	no fix	2018-03-08	—
CVE-2020-3121US	medium6.1	1.07% (65th)	—	n/a	2020-01-26	2 versions
CVE-2017-12307US	medium6.1	0.87% (59th)	—	no fix	2018-01-18	—
CVE-2017-12308US	medium6.1	0.83% (58th)	—	no fix	2018-01-18	—

The flaw types (CWEs) most of these CVEs share.

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')2 CVEs
CWE-113Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')1 CVEs
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer1 CVEs
CWE-20Improper Input Validation1 CVEs
CWE-770Allocation of Resources Without Limits or Throttling1 CVEs
CWE-798Use of Hard-coded Credentials1 CVEs

Which sources assert this record, and when.

scry

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