CVE-2022-20733Network attack vector

Unauthenticated role access via exposed SAML metadata

Published Jun 15, 2022 · Updated Nov 6, 2024

Authentication bypass in Cisco Identity Services Engine 3.1 before Patch 3 allows remote attackers to access all user-portal roles without credentials. The login page exposes sensitive SAML metadata that can be used to bypass user-portal authentication. Reachability requires an affected ISE 3.1 deployment with SAML login enabled; successful exploitation grants unrestricted portal-role access.

CVSS severity5.3
Medium
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Cisco Identity Services Engine 3.1 before Patch 3 allows remote attackers to access all user-portal roles without credentials. The login page exposes sensitive SAML metadata that can be used to bypass user-portal authentication. Reachability requires an affected ISE 3.1 deployment with SAML login enabled; successful exploitation grants unrestricted portal-role access.

The record

CVE
CVE-2022-20733
Published
Jun 15, 2022
Updated
Nov 6, 2024
Vendor
ClamAV
Product
Cisco Identity Services Engine
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 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?

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

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Identity Services Engineversion=n/a

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5.3Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:X
5.0NIST NVDAV:N/AC:L/Au:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
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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