Cisco Secure Access Control System Java Deserialization Vulnerability

Technical Severity

CVSS v3.1 Metrics

CRITICAL

9.8 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation Likelihood

EPSS Prediction

3.95 %

Predictive Probability

Percentile Rank

88.3 th

Documented as more likely to be exploited than 88.3% of known CVEs.

Detection Date

Mar 25, 2022

Remediation Due

Apr 15, 2022

CISA Catalog Active

Threat Analysis

A vulnerability in Java deserialization used by Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. The vulnerability is due to insecure deserialization of user-supplied content by the affected software.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2018-0147