CVE-2023-20254 — A vulnerability in the session management system of the Cisco Catalyst SD-WAN Ma

A vulnerability in the session management system of the Cisco Catalyst SD-WAN Manager multi-tenant feature could allow an authenticated, remote attacker to access another tenant that is being managed by the same Cisco Catalyst SD-WAN Manager instance. This vulnerability requires

01What is this vulnerability?

A vulnerability in the session management system of the Cisco Catalyst SD-WAN Manager multi-tenant feature could allow an authenticated, remote attacker to access another tenant that is being managed by the same Cisco Catalyst SD-WAN Manager instance. This vulnerability requires the multi-tenant feature to be enabled. This vulnerability is due to insufficient user session management within the…

02Affected products

Vendor	Product	Versions
Cisco	Cisco SD	WAN vManage — 17.2.6, 17.2.7, 17.2.8, 17.2.9, 17.2.10, 17.2.4, 17.2.5, 18.3.1.1, 18.3.3.1, 18.3.3, 18.3.4, 18.3.5, 18.3.7, 18.3.8, 18.3.6.1, 18.3.1, 18.3.0, 18.4.0.1, 18.4.3, 18.4.302, 18.4.303, 18.4.4, 18.4.5, 18.4.0, 18.4.1, 18.4.6, 19.2.0, 19.2.097, 19.2.099, 19.2.1, 19.2.2, 19.2.3, 19.2.31, 19.2.929, 19.2.4, 20.1.1.1, 20.1.12, 20.1.1, 20.1.2, 20.1.3, 19.3.0, 19.1.0, 18.2.0, 20.3.1, 20.3.2, 20.3.2.1, 20.3.3, 20.3.3.1, 20.3.4, 20.3.4.1, 20.3.4.2, 20.3.5, 20.3.6, 20.3.7, 20.3.7.1, 20.3.4.3, 20.3.5.1, 20.3.7.2, 20.4.1, 20.4.1.1, 20.4.1.2, 20.4.2, 20.4.2.2, 20.4.2.1, 20.4.2.3, 20.5.1, 20.5.1.2, 20.5.1.1, 20.6.1, 20.6.1.1, 20.6.2.1, 20.6.2.2, 20.6.2, 20.6.3, 20.6.3.1, 20.6.1.2, 20.6.3.2, 20.6.3.3, 20.6.3.0.45, 20.6.3.0.46, 20.6.3.0.47, 20.7.1, 20.7.1.1, 20.7.2, 20.8.1, 20.9.1, 20.9.2, 20.9.2.1, 20.9.3, 20.9.3.1, 20.9.2.3, 20.9.3.0.12, 20.9.3.0.16, 20.9.3.0.17, 20.9.3.0.18, 20.9.3.0.20, 20.9.3.0.21, 20.9.3.0.23, 20.10.1, 20.10.1.1

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-09-27T17:11:23.280Z
• Last modified: 2025-12-16T18:23:21.286Z

09References

• sec.cloudapps.cisco.com — https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ci…