Home/CVE/A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privil
CVE

CVE-2021-1528

A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privil

A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privileges on an affected system. This vulnerability exists because the affected software does not properly restrict access to privileged processes. An attacker could exploit this vulnerability by invoking a privileged process in the affected system.

A successful exploit could allow the attacker to perform actions with the privileges of the root user.

HIGH · CVSS 7.8 EPSS 0.00057
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Weakness Classification

Affected Products & Versions

22
cisco catalyst sd-wan manager>= 20.4 and < 20.4.2
cisco catalyst sd-wan manager>= 20.5 and < 20.5.1
cisco vsmart controller>= 20.4 and < 20.4.2
cisco vsmart controller>= 20.5 and < 20.5.1
cisco vedge 100 firmware>= 20.4 and < 20.4.2
cisco vedge 100 firmware>= 20.5 and < 20.5.1

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · psirt@cisco.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Jun 2021 · 05:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

1
cisco-csafcisco-sa-sd-wan-fuErCWwF
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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