CVE-2019-1805

lowpriority · track · 17EPSS 0.005 · 46 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.55% (46th) EPSS

CVSS 3.3 · low

Is it mine?

4 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

A vulnerability in certain access control mechanisms for the Secure Shell (SSH) server implementation for Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to access a CLI instance on an affected device. The vulnerability is due to a lack of proper input- and validation-checking mechanisms for inbound SSH connections on an affected device. An attacker could exploit this vulnerability by attempting to establish an SSH connection to an affected controller. An exploit could allow the attacker to access an affected device's CLI to potentially cause further attacks. This vulnerability has been fixed in version 8.5(140.0).

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedCisco Wireless LAN Controller (WLC)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technical severity, 0–10. One row per scoring source.

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.3–5.4

v2.03.3lowAV:A/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 6.5 · impact 2.9

v3.14.3mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.05.4mediumCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · ENISA EU

v3.05.4mediumCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · psirt@cisco.com USexploitability 2.8 · impact 2.5

v3.05.4mediumCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · Cisco PSIRT US

v3.14.3mediumAV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.14mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-284USCWE-284US

affected products (4)

Products and version ranges known to be affected.

Cisco Cisco Wireless LAN Controller (WLC)all versionscisco_csafUS
Cisco Cisco Wireless LAN Controller (WLC)unspecified → 8.5(140.0)enisa_euvdEU
Cisco Systems Inc. Wireless LAN controller≤ 8.5(140.0)fstec_bduRU
cisco wireless lan controller software= 8.3(141.0)nvdUScpe:2.3:a:cisco:wireless_lan_controller_software:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-20190417-wlc-sshCisco Wireless LAN Controller Secure Shell Unauthorized Access Vulnerability2019-04-17csaf · cisco_csafUS
A vulnerability in certain access control mechanisms for the Secure Shell (SSH) server implementation for Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, adjacent attacker to access a CLI instance on an affected device. The vulnerability is due to a lack of proper input- and validation-checking mechanisms for inbound SSH connections on an affected device. An attacker could exploit this vulnerability by attempting to establish an SSH connection to an affected controller. An exploit could allow the attacker to access an affected device's CLI to potentially cause further attacks. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-wlc-ssh ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-wlc-ssh"]

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

published 2019-04-18modified 2026-06-17

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references (13)

External citations — patches, advisories, analysis.

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