Get real-time updates on Telegram
CVE-2025-20343: identity services engine 3.4.0; +1 more affected products
CVE-2025-20343. CVSS 3.1 base score 7.5 (HIGH, NVD). EPSS 0.00712 (percentile 0.52678), scored 17-Oct-2026.
Affected technology
identity services engine · 3.4.0
cisco
identity services engine · 3.4.0 · update patch1
cisco
identity services engine · 3.4.0 · update patch2
cisco
identity services engine · 3.4.0 · update patch3
cisco
Cisco Identity Services Engine Software · 3.4.0, 3.4 Patch 1, 3.4 Patch 2, 3.4 Patch 3
Cisco
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
An unauthenticated, remote attacker could cause Cisco ISE to restart unexpectedly. Vendor/CNA’s CVSS 3.1 assessment (base score 8.6/10) rates confidentiality and integrity impact as none; availability impact as high. NVD’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and integrity impact as none; availability impact as high.
- CWE
- CWE-697
- CCR priority
- 30.2 /100 (P4)
- CVSS 3.1
- 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · NVD
- EPSS
- 0.00712 · percentile 0.52678 · 2026-10-17
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-18 22:50:08.248207+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2025-20343.html