Cross-tenant access via insufficient session isolation
Published Sep 27, 2023 · Updated Dec 16, 2025
Authorization bypass in affected Cisco Catalyst SD-WAN Manager releases allows remote authenticated users to access another tenant. The multi-tenant session manager accepts a crafted request without confining the authenticated session to its assigned tenant. Multi-tenancy must be enabled, and a highly privileged account can read another tenant's data, change its configuration, or take it offline.
Summary
What happened
Authorization bypass in affected Cisco Catalyst SD-WAN Manager releases allows remote authenticated users to access another tenant. The multi-tenant session manager accepts a crafted request without confining the authenticated session to its assigned tenant. Multi-tenancy must be enabled, and a highly privileged account can read another tenant's data, change its configuration, or take it offline.
The record
- CVE
- CVE-2023-20254
- Published
- Sep 27, 2023
- Updated
- Dec 16, 2025
- Vendor
- ClamAV
- Product
- Cisco Catalyst SD-WAN Manager
- Classifications
- CWE-862, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 27, 2023CVE publishedPublication date reported by the CVE source.
- Dec 16, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=17.2.10
- Affected versionversion=17.2.10 <=20.9.3.1
- Affected versionversion=17.2.4
- Affected versionversion=17.2.5
- Affected versionversion=17.2.6
- Affected versionversion=17.2.7
- Affected versionversion=17.2.8
- Affected versionversion=17.2.9
- Affected versionversion=18.2.0
- Affected versionversion=18.3.0
- Affected versionversion=18.3.1
- Affected versionversion=18.3.1.1
- Affected versionversion=18.3.3
- Affected versionversion=18.3.3.1
- Affected versionversion=18.3.4
- Affected versionversion=18.3.5
- Affected versionversion=18.3.6.1
- Affected versionversion=18.3.7
- Affected versionversion=18.3.8
- Affected versionversion=18.4.0
- Affected versionversion=18.4.0.1
- Affected versionversion=18.4.1
- Affected versionversion=18.4.3
- Affected versionversion=18.4.302
- Affected versionversion=18.4.303
- Affected versionversion=18.4.4
- Affected versionversion=18.4.5
- Affected versionversion=18.4.6
- Affected versionversion=19.1.0
- Affected versionversion=19.2.0
- Affected versionversion=19.2.097
- Affected versionversion=19.2.099
- Affected versionversion=19.2.1
- Affected versionversion=19.2.2
- Affected versionversion=19.2.3
- Affected versionversion=19.2.31
- Affected versionversion=19.2.4
- Affected versionversion=19.2.929
- Affected versionversion=19.3.0
- Affected versionversion=20.10.1
- Affected versionversion=20.10.1.1
- Affected versionversion=20.1.1
- Affected versionversion=20.1.1.1
- Affected versionversion=20.1.12
- Affected versionversion=20.1.2
- Affected versionversion=20.1.3
- Affected versionversion=20.3.1
- Affected versionversion=20.3.2
- Affected versionversion=20.3.2.1
- Affected versionversion=20.3.3
- Affected versionversion=20.3.3.1
- Affected versionversion=20.3.4
- Affected versionversion=20.3.4.1
- Affected versionversion=20.3.4.2
- Affected versionversion=20.3.4.3
- Affected versionversion=20.3.5
- Affected versionversion=20.3.5.1
- Affected versionversion=20.3.6
- Affected versionversion=20.3.7
- Affected versionversion=20.3.7.1
- Affected versionversion=20.3.7.2
- Affected versionversion=20.4.1
- Affected versionversion=20.4.1.1
- Affected versionversion=20.4.1.2
- Affected versionversion=20.4.2
- Affected versionversion=20.4.2.1
- Affected versionversion=20.4.2.2
- Affected versionversion=20.4.2.3
- Affected versionversion=20.5.1
- Affected versionversion=20.5.1.1
- Affected versionversion=20.5.1.2
- Affected versionversion=20.6.1
- Affected versionversion=20.6.1.1
- Affected versionversion=20.6.1.2
- Affected versionversion=20.6.2
- Affected versionversion=20.6.2.1
- Affected versionversion=20.6.2.2
- Affected versionversion=20.6.3
- Affected versionversion=20.6.3.0.45
- Affected versionversion=20.6.3.0.46
- Affected versionversion=20.6.3.0.47
- Affected versionversion=20.6.3.1
- Affected versionversion=20.6.3.2
- Affected versionversion=20.6.3.3
- Affected versionversion=20.7.1
- Affected versionversion=20.7.1.1
- Affected versionversion=20.7.2
- Affected versionversion=20.8.1
- Affected versionversion=20.9.1
- Affected versionversion=20.9.2
- Affected versionversion=20.9.2.1
- Affected versionversion=20.9.2.3
- Affected versionversion=20.9.3
- Affected versionversion=20.9.3.0.12
- Affected versionversion=20.9.3.0.16
- Affected versionversion=20.9.3.0.17
- Affected versionversion=20.9.3.0.18
- Affected versionversion=20.9.3.0.20
- Affected versionversion=20.9.3.0.21
- Affected versionversion=20.9.3.0.23
- Affected versionversion=20.9.3.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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