CVE-2023-20252Network attack vector

Unauthenticated account access via SAML API token generation

Published Sep 27, 2023 · Updated Dec 16, 2025

Improper authorization in Cisco Catalyst SD-WAN Manager 20.9.3.2 and 20.11.1.2 allows remote attackers to access arbitrary accounts. The SAML API applies improper authentication checks to direct requests and issues an authorization token that grants application access as an arbitrary user. No credentials or user interaction are required, and the resulting token provides the selected user's application privileges.

CVSS severity9.8
Critical
EPSS probability1.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Cisco Catalyst SD-WAN Manager 20.9.3.2 and 20.11.1.2 allows remote attackers to access arbitrary accounts. The SAML API applies improper authentication checks to direct requests and issues an authorization token that grants application access as an arbitrary user. No credentials or user interaction are required, and the resulting token provides the selected user's application privileges.

The record

CVE
CVE-2023-20252
Published
Sep 27, 2023
Updated
Dec 16, 2025
Vendor
ClamAV
Product
Cisco Catalyst SD-WAN Manager
Classifications
CWE-862, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=20.11.1.2
  2. Affected versionversion=20.9.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Catalyst SD-WAN Managerversion=20.11.1.2; version=20.9.3.2

Published CVSS scores

9.8Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

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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