CVE-2021-1514

mediumpriority · track · 31EPSS 0.003 · 25 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.33% (25th) EPSS

CVSS 4.6 · medium

Is it mine?

75 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with Administrator privileges on the underlying operating system. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI. The attacker must be authenticated as a low-privileged user to execute the affected commands. A successful exploit could allow the attacker to execute commands with Administrator privileges.

remediations

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

A vendor fix is available.

FixedCisco Catalyst SD-WANcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco Catalyst SD-WAN Managercisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco SD-WAN vContainercisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco SD-WAN vEdge Cloudcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco SD-WAN vEdge Routercisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.4–7.8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.04.4mediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Nsecondary · ENISA EU

v3.04.4mediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Nsecondary · psirt@cisco.com USexploitability 1.8 · impact 2.5

v3.04.4mediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Nsecondary · Cisco PSIRT US

v3.14.4mediumAV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/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-78USprimaryCWE-20USCWE-20USCWE-77US

affected products (75)

Products and version ranges known to be affected.

Cisco Cisco Catalyst SD-WANall versionscisco_csafUS
Cisco Cisco Catalyst SD-WAN Managerall versionscisco_csafUS
Cisco Cisco SD-WAN vContainerall versionscisco_csafUS
Cisco Cisco SD-WAN vEdge Cloudall versionscisco_csafUS
Cisco Cisco SD-WAN vEdge Routerall versionscisco_csafUS
Cisco Cisco SD-WAN Solution≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco SD-WAN18.3 → 18.3.0fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN18.4 → 18.4.0fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN19.1 → 19.1.0fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN19.2 → 19.2.0fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN19.3 → 19.3.0fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN20.1 → 20.1.1fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN20.3 → 20.3.1fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN20.4 → 20.4.1fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN20.5 → 20.5.1fstec_bduRU
cisco catalyst sd-wan manager20.1 → 20.1.1nvdUScpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco catalyst sd-wan manager20.3 → 20.3.1nvdUScpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco catalyst sd-wan manager20.4 → 20.4.1nvdUScpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco catalyst sd-wan manager20.5 → 20.5.1nvdUScpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco sd-wan vbond orchestrator< 18.3nvdUScpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*

showing 20 of 75

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-sdwan-privesc-QVszVUPyCisco SD-WAN Software Privilege Escalation Vulnerability2021-05-05csaf · cisco_csafUS
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to inject arbitrary commands to be executed with Administrator privileges on the underlying operating system. This vulnerability is due to insufficient input validation on certain CLI commands. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI. The attacker must be authenticated as a low-privileged user to execute the affected commands. A successful exploit could allow the attacker to execute commands with Administrator privileges. Cisco has released software updates that address this vulnerability. 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-sdwan-privesc-QVszVUPy ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-privesc-QVszVUPy"]

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 2021-05-06modified 2026-06-17

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references (6)

External citations — patches, advisories, analysis.

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