CVE-2021-1589

lowpriority · track · 26EPSS 0.010 · 62 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.97% (62nd) EPSS

CVSS 3.5 · low

Is it mine?

10 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 disaster recovery feature of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain unauthorized access to user credentials. This vulnerability exists because access to API endpoints is not properly restricted. An attacker could exploit this vulnerability by sending a request to an API endpoint. A successful exploit could allow the attacker to gain unauthorized access to administrative credentials that could be used in further attacks.

remediations

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

A vendor fix is available.

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.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–6.5

v2.03.5lowAV:N/AC:M/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 6.8 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.16.5mediumAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Nsecondary · psirt@cisco.com USexploitability 2.8 · impact 3.6

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.16.5mediumCVSS:3.1/AV:N/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-522USprimaryCWE-256USCWE-256USCWE-522US

affected products (10)

Products and version ranges known to be affected.

Cisco Cisco Catalyst SD-WAN Managerall versionscisco_csafUS
Cisco Cisco SD-WAN vManage≤ n/aenisa_euvdEU
Cisco Systems Inc. Catalyst SD-WAN Manager≤ 20.3.4fstec_bduRU
Cisco Systems Inc. Catalyst SD-WAN Manager20.4 → 20.4.2fstec_bduRU
Cisco Systems Inc. Catalyst SD-WAN Manager20.5 → 20.5.2fstec_bduRU
Cisco Systems Inc. Catalyst SD-WAN Manager20.6 → 20.6.1fstec_bduRU
cisco sd-wan20.3 → 20.3.4nvdUScpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:*
cisco sd-wan20.4 → 20.4.2nvdUScpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:*
cisco sd-wan20.5 → 20.5.2nvdUScpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:*
cisco sd-wan20.6 → 20.6.1nvdUScpe:2.3:a:cisco:sd-wan:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-sd-wan-credentials-ydYfskzZCisco SD-WAN vManage Software Disaster Recovery Feature Password Exposure Vulnerability2021-09-22csaf · cisco_csafUS
A vulnerability in the disaster recovery feature of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain unauthorized access to user credentials. This vulnerability exists because access to API endpoints is not properly restricted. An attacker could exploit this vulnerability by sending a request to an API endpoint. A successful exploit could allow the attacker to gain unauthorized access to administrative credentials that could be used in further attacks. 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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+1717 more

references (8)

External citations — patches, advisories, analysis.

scry

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