CVE-2026-20352
CVE-2026-20352: 2 tracked advisory records across Cisco. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Cisco
2 advisories- Advisory severityHigh8.6
High [CVE-2026-20352] Cisco Identity Services Engine RADIUS Denial of Service Vulnerability
cisco-sa-ise-RADIUS-dos-wR3hYPMwSource published Source updated
A vulnerability in the RADIUS feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain RADIUS requests. An attacker could exploit this vulnerability by sending a crafted RADIUS request directly to an affected device. A successful exploit could allow the attacker to cause the ISE node to become unavailable. For single node deployments in that condition, endpoints that have not already authenticated would be unable to access the network until the node comes back up on its own. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of a…
- Affected products in this advisory
- Identity Services Engine Software
- Source-reported affected versions
- Scope: This vulnerability affects Cisco ISE Policy Service Nodes (PSNs) if they have RADIUS services enabled.
- Release 3.2 (first fixed: 3.2 Patch 11)
- Release 3.3 (first fixed: 3.3 Patch 12)
- Release 3.4 (first fixed: 3.4 Patch 7)
1 more entries in the full advisory.
- Source-reported fixed versions
- 3.2 Patch 11
- 3.3 Patch 12
- 3.4 Patch 7
- 3.5 Patch 4
- Mitigation guidance
- Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
- Release 3.2: upgrade to 3.2 Patch 11.
- Release 3.3: upgrade to 3.3 Patch 12.
- Release 3.4: upgrade to 3.4 Patch 7.
1 more entries in the full advisory.
- Workarounds
- There are no workarounds that address this vulnerability.
- Advisory severityUnrated
Advisory [CVE-2026-20130 +23] Cisco Advance Notification for Publication of September 16, 2026, Security Advisories
cisco-sa-notice-jfxK98ZPSource published Source updated
This bulletin covers 24 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
On September 16, 2026, the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the Foundation: A Predictable, Customer-Focused Response to AI-Accelerated Vulnerability Discovery. Cisco Identity Services Engine Title CVE ID SIR Base Score Critical 10.0 9.9 9.1 High 8.6 7.5
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories.
Android app · Google Play
Monitor future Cisco CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.