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CVE-2025-20124

CRITICAL
9.9
CVSS 3.1
Description
A vulnerability in an API of Cisco ISE could allow an authenticated, remote attacker to execute arbitrary commands as the root user on an affected device. This vulnerability is due to insecure deserialization of user-supplied Java byte streams by the affected software. An attacker could exploit this vulnerability by sending a crafted serialized Java object to an affected API. A successful exploit could allow the attacker to execute arbitrary commands on the device and elevate privileges. Note: To successfully exploit this vulnerability, the attacker must have valid read-only administrative credentials. In a single-node deployment, new devices will not be able to authenticate during the reload time.

Metadata

CVE ID
CVE-2025-20124
State
PUBLISHED
Assigner
cisco
Reserved
2024-10-10 19:15 UTC
Published
2025-02-05 16:12 UTC
Last updated
2026-02-26 19:09 UTC
Primary CWE
CWE-502
Deserialization of Untrusted Data
Vendor / Product
Cisco / Cisco Identity Services Engine Software
Sources
cve.org  ·  NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
total
Affected products (2)
VendorProductPlatformVersions
Cisco Cisco Identity Services Engine Software — 3.0.0, 3.0.0 p1, 3.0.0 p2, 3.0.0 p3 …
Cisco Cisco ISE Passive Identity Connector — 3.0.0, 3.2.0, 3.1.0, 3.3.0
Weakness (CWE)
CWESourceDescription
CWE-502 cna Deserialization of Untrusted Data
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.9 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
References (1)
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