High severity · published Sep 24, 2020
CVE-2020-3526
A vulnerability in the Common Open Policy Service (COPS) engine of Cisco IOS XE Software on Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker…
8.6
CVSS
1.4%
EPSS
No
On KEV
Description
A vulnerability in the Common Open Policy Service (COPS) engine of Cisco IOS XE Software on Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to crash a device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a malformed COPS message to the device. A successful exploit could allow the attacker to crash the device.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IX
IOS XE · Cisco
17.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-3526
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-3526
Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-COPS-VLD-MpbTvGEW
More from IOS XE
10.0
CVE-2023-20198
Cisco IOS XE Web UI Privilege Escalation Vulnerability
9.8
CVE-2018-0151
Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability
9.8
CVE-2017-3881
Cisco IOS and IOS XE Remote Code Execution Vulnerability
8.8
CVE-2018-0167
Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability
8.8
CVE-2017-6738
Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability