CVE-2026-20146: cisco cisco identity services engine software Path Traversal
Vulnerability summary
CVE-2026-20146 is a medium (CVSS 5.5) Path Traversal vulnerability in cisco cisco identity services engine software. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.5% of scored vulnerabilities.
Timeline
- 15-07-2026PublishedVulnerability first disclosed.
- 15-07-2026Last modifiedVulnerability information updated.
Description
A vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system to either read or delete arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected system. A successful exploit could allow the attacker to access sensitive files or delete arbitrary files on the affected system.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST5.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
0.00 pp
From 0.50% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco4 products
- cisco identity services engine software3.1.0 | 3.1.0 p1 | 3.1.0 p3 | 3.1.0 p2 | 3.2.0 | 3.1.0 p4 | 3.1.0 p5 | 3.2.0 p1 | 3.1.0 p6 | 3.2.0 p2 | 3.1.0 p7 | 3.3.0 | 3.2.0 p3 | 3.2.0 p4 | 3.1.0 p8 | 3.2.0 p5 | 3.2.0 p6 | 3.1.0 p9 | 3.3 Patch 2 | 3.3 Patch 1 | 3.3 Patch 3 | 3.4.0 | 3.2.0 p7 | 3.3 Patch 4 | 3.4 Patch 1 | 3.1.0 p10 | 3.3 Patch 5 | 3.3 Patch 6 | 3.4 Patch 2 | 3.3 Patch 7 | 3.4 Patch 3 | 3.5.0 | 3.4 Patch 4 | 3.3 Patch 8 | 3.2 Patch 8 | 3.5 Patch 1 | 3.3 Patch 9 | 3.2 Patch 9 | 3.4 Patch 5 | 3.5 Patch 3 | 3.5 Patch 2 | 3.3 Patch 10
- cisco ise passive identity connector3.2.0 | 3.1.0 | 3.3.0 | 3.4.0 | 3.5.0
- identity_services_engine< 3.3.0 | 3.3.0 | 3.3.0:patch1 | 3.3.0:patch10 | 3.3.0:patch11 | 3.3.0:patch2 | 3.3.0:patch3 | 3.3.0:patch4 | 3.3.0:patch5 | 3.3.0:patch6 | 3.3.0:patch7 | 3.3.0:patch8 | 3.3.0:patch9 | 3.4.0 | 3.4.0:patch1 | 3.4.0:patch2 | 3.4.0:patch3 | 3.4.0:patch4 | 3.4.0:patch5 | 3.4.0:patch6 | 3.5.0 | 3.5.0:patch1 | 3.5.0:patch2 | 3.5.0:patch3
- identity_services_engine_passive_identity_connector< 3.3.0 | 3.3.0 | 3.3.0:patch1 | 3.3.0:patch10 | 3.3.0:patch11 | 3.3.0:patch2 | 3.3.0:patch3 | 3.3.0:patch4 | 3.3.0:patch5 | 3.3.0:patch6 | 3.3.0:patch7 | 3.3.0:patch8 | 3.3.0:patch9 | 3.4.0 | 3.4.0:patch1 | 3.4.0:patch2 | 3.4.0:patch3 | 3.4.0:patch4 | 3.4.0:patch5 | 3.4.0:patch6
1 vendor · 4 products
References
1 links- sec.cloudapps.cisco.com/security/…Vendor Advisory