CVE-2019-1746
Cisco IOS and IOS XE Software Cluster Management Protocol Denial of Service Vulnerability
HIGH
7.4
CVSS Score
Published: March 27, 2019 at 11:45 PM UTC
Updated: June 17, 2026 at 02:29 AM UTC
2 products affected across 1 vendorIOSIOS Xe
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Severity
HIGH7.4
Exploit prediction
EPSS 0.6%
SSVC
No known exploit
Description
A vulnerability in the Cluster Management Protocol (CMP) processing code in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation when processing CMP management packets. An attacker could exploit this vulnerability by sending malicious CMP management packets to an affected device. A successful exploit could cause the switch to crash, resulting in a DoS condition. The switch will reload automatically.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
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16.12.116.9.2h3.10.0E3.10.0cE3.10.0ce3.10.0e3.10.1E3.10.1aE3.10.1ae3.10.1e3.10.1sE3.10.1se3.10.4S3.10.4s3.12.0aS3.12.0as3.16.0bS3.16.0bs3.16.10S3.16.10s3.16.1S3.16.1s3.2.0SG3.2.0sg3.2.10SG3.2.10sg3.2.11SG3.2.11sg3.2.1SG3.2.1sg3.2.2SG3.2.2sg3.2.3SG3.2.3sg3.2.4SG3.2.4sg3.2.5SG3.2.5sg3.2.6SG3.2.6sg3.2.7SG3.2.7sg3.2.8SG3.2.8sg3.2.9SG3.2.9sg3.3.0SG3.3.0SQ3.3.0XO3.3.0sg3.3.0sq3.3.0xo3.3.1SG3.3.1SQ3.3.1XO3.3.1sg3.3.1sq3.3.1xo3.3.2SG3.3.2XO3.3.2sg3.3.2xo3.4.0SG3.4.0SQ3.4.0sg3.4.0sq3.4.1SG3.4.1SQ3.4.1sg3.4.1sq3.4.2SG3.4.2sg3.4.3SG3.4.3sg3.4.4SG3.4.4sg3.4.5SG3.4.5sg3.4.6SG3.4.6sg3.4.7SG3.4.7sg3.4.8SG3.4.8sg3.5.0E3.5.0SQ3.5.0e3.5.0sq3.5.1E3.5.1SQ3.5.1e3.5.1sq3.5.2E3.5.2SQ3.5.2e3.5.2sq3.5.3E3.5.3SQ3.5.3e3.5.3sq3.5.4SQ3.5.4sq3.5.5SQ3.5.5sq3.5.6SQ3.5.6sq3.5.7SQ3.5.7sq3.5.8SQ3.5.8sq3.6.0E3.6.0aE3.6.0ae3.6.0bE3.6.0be3.6.0e3.6.10E3.6.10e3.6.1E3.6.1e3.6.2E3.6.2aE3.6.2ae3.6.2e3.6.3E3.6.3e3.6.4E3.6.4e3.6.5E3.6.5aE3.6.5ae3.6.5bE3.6.5be3.6.5e3.6.6E3.6.6e3.6.7E3.6.7aE3.6.7ae3.6.7bE3.6.7be3.6.7e3.6.8E3.6.8e3.6.9E3.6.9e3.7.0E3.7.0e3.7.1E3.7.1e3.7.2E3.7.2e3.7.3E3.7.3e3.7.4E3.7.4e3.7.5E3.7.5e3.8.0E3.8.0e3.8.1E3.8.1e3.8.2E3.8.2e3.8.3E3.8.3e3.8.4E3.8.4e3.8.5E3.8.5aE3.8.5ae3.8.5e3.8.6E3.8.6e3.8.7E3.8.7e3.9.0E3.9.0e3.9.1E3.9.1e3.9.2E3.9.2bE3.9.2be3.9.2e
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/107612Vendor Advisoryx_refsource_CISCOPatch
Source: [email protected]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-cmp-dosSSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.4HIGHcisco
- Attack Vector
- ADJACENT_NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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