CVE-2021-1546

lowpriority · track · 22EPSS 0.002 · 14 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.23% (14th) EPSS

CVSS 2.1 · low

Is it mine?

40 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 access sensitive information. This vulnerability is due to improper protections on file access through the CLI. An attacker could exploit this vulnerability by running a CLI command that targets an arbitrary file on the local system. A successful exploit could allow the attacker to return portions of an arbitrary file, possibly resulting in the disclosure of sensitive information.

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

cvss

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

5.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.1–5.5

v2.02.1lowAV:L/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 2.9

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.15.5mediumAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · psirt@cisco.com USexploitability 1.8 · impact 3.6

v3.15.1mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · Cisco PSIRT US

ssvc

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

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-209USprimaryCWE-209US

affected products (40)

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 Solution≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco SD-WAN18.4 → 20.4.2fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN≥ 18.4 до 20.4.2fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN20.5 → 20.5.2fstec_bduRU
Cisco Systems Inc. Cisco SD-WAN≥ 20.6 до 20.6.1fstec_bduRU
cisco catalyst sd-wan manager18.4 → 20.4.2nvdUScpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco catalyst sd-wan manager20.6 → 20.6.1nvdUScpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
cisco sd-wan vbond orchestrator18.4 → 20.4.2nvdUScpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*
cisco sd-wan vbond orchestrator20.5 → 20.5.2nvdUScpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*
cisco sd-wan vbond orchestrator20.6 → 20.6.1nvdUScpe:2.3:a:cisco:sd-wan_vbond_orchestrator:*:*:*:*:*:*:*:*
cisco sd-wan vmanage20.5 → 20.5.2nvdUScpe:2.3:a:cisco:sd-wan_vmanage:*:*:*:*:*:*:*:*
cisco vedge 100 firmware18.4 → 20.4.2nvdUScpe:2.3:o:cisco:vedge_100_firmware:*:*:*:*:*:*:*:*
cisco vedge 100 firmware20.5 → 20.5.2nvdUScpe:2.3:o:cisco:vedge_100_firmware:*:*:*:*:*:*:*:*
cisco vedge 100 firmware20.6 → 20.6.1nvdUScpe:2.3:o:cisco:vedge_100_firmware:*:*:*:*:*:*:*:*
cisco vedge 1000 firmware18.4 → 20.4.2nvdUScpe:2.3:o:cisco:vedge_1000_firmware:*:*:*:*:*:*:*:*
cisco vedge 1000 firmware20.5 → 20.5.2nvdUScpe:2.3:o:cisco:vedge_1000_firmware:*:*:*:*:*:*:*:*
cisco vedge 1000 firmware20.6 → 20.6.1nvdUScpe:2.3:o:cisco:vedge_1000_firmware:*:*:*:*:*:*:*:*
cisco vedge 100b firmware18.4 → 20.4.2nvdUScpe:2.3:o:cisco:vedge_100b_firmware:*:*:*:*:*:*:*:*

showing 20 of 40

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-sd-wan-Fhqh8pKXCisco SD-WAN Software Information Disclosure Vulnerability2021-09-22csaf · cisco_csafUS
A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to access sensitive information. This vulnerability is due to improper protections on file access through the CLI. An attacker could exploit this vulnerability by running a CLI command that targets an arbitrary file on the local system. A successful exploit could allow the attacker to return portions of an arbitrary file, possibly resulting in the disclosure of sensitive information. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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 2021-09-23modified 2026-06-17

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+937 more

references (8)

External citations — patches, advisories, analysis.

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