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CVE-2018-0253

CRITICAL

A vulnerability in the ACS Report component of Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected system. Commands executed by the attacker are processed at the targeted user's privilege level. The vulnerability is due to insufficient validation of the Action Message Format (AMF) protocol. An attacker could exploit this vulnerability by sending a crafted AMF message that contains malicious code to a targeted user. A successful exploit could allow the attacker to execute arbitrary commands on the ACS device. This vulnerability affects all releases of Cisco Secure ACS prior to Release 5.8 Patch 7. Cisco Bug IDs: CSCve69037.

Published: May 2, 2018 Modified: Jun 17, 2026
CWE-20 CWE-20

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (8)

Vendor Product Version
cisco secure_access_control_system * < 5.8
cisco secure_access_control_system 5.8
cisco secure_access_control_system 5.8
cisco secure_access_control_system 5.8
cisco secure_access_control_system 5.8
cisco secure_access_control_system 5.8
cisco secure_access_control_system 5.8
cisco secure_access_control_system 5.8\(0.8\)

GitHub Security Advisory GHSA-99xc-j93w-f7qr

A vulnerability in the ACS Report component of Cisco Secure Access Control System (ACS) could...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 6.98%

Top 6% most likely to be exploited

Threat Score 41.3 / 100

Data Sources

NVD EPSS GitHub