CVE-2025-20124
high-risk
Published 2025-02-05
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.
Do I need to act?
~
8.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.9/10
Critical
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (1)
63
/ 100
high-risk
Severity
33/34 · Critical
Exploitability
10/34 · Low
Exposure
20/34 · Moderate