CVE & CISA-KEV Catalog

CVE-2019-1891

HIGHEPSS 75th pctl

7.5

CVSS v3

Description

A vulnerability in the web interface of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of requests sent to the web interface. An attacker could exploit this vulnerability by sending a malicious request to the web interface of an affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition.

CWE-20Improper Input Validation

How to fix

Remediation Available

esw2-350g52dc firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

esw2-550x48dc firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf200-24 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf200-24p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf200-48 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf200-48p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf300-08 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf300-24 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf300-24mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf300-24p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf300-24pp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf300-48 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf300-48p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf300-48pp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf302-08 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf302-08mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf302-08mpp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf302-08p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf302-08pp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf500-24 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf500-24mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf500-24p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf500-48 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf500-48mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sf500-48p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg200-18 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg200-26 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg200-26p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg200-50 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg200-50p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-10 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-10mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-10mpp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-10p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-10pp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-10sfp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-20 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-28 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-28mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-28p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-28pp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-28sfp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-52 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-52mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg300-52p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500-28 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500-28mpp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500-28p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500-52 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500-52mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500-52p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500x-24 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500x-48 firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500x-48mp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500x-48p firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500x24mpp firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

sg500xg8f8t firmwareNVD

Affected:< 1.4.10.6Fixed in:1.4.10.6CVE-2019-1891derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.77%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.