CVE-2021-1589Network attack vector

Administrative credential disclosure via unrestricted disaster recovery API

Published Sep 23, 2021 · Updated Nov 7, 2024

Credential exposure in Cisco Catalyst SD-WAN Manager allows remote authenticated users to obtain administrative credentials through its API. The disaster recovery API fails to restrict access to endpoints that return credentials, allowing an authenticated session to retrieve administrative secrets. The disaster recovery feature must be enabled; the reported consequence is credential disclosure for use in further attacks.

CVSS severity6.5
Medium
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Cisco Catalyst SD-WAN Manager allows remote authenticated users to obtain administrative credentials through its API. The disaster recovery API fails to restrict access to endpoints that return credentials, allowing an authenticated session to retrieve administrative secrets. The disaster recovery feature must be enabled; the reported consequence is credential disclosure for use in further attacks.

The record

CVE
CVE-2021-1589
Published
Sep 23, 2021
Updated
Nov 7, 2024
Vendor
ClamAV
Product
Cisco Catalyst SD-WAN Manager
Classifications
CWE-256, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 7, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Catalyst SD-WAN Managerversion=n/a

Published CVSS scores

6.5Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:X/RL:X/RC:X
3.5NIST National Vulnerability DatabaseAV:N/AC:M/Au:S/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-256Plaintext Storage of a Password
T1555Credentials from Password Stores

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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