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CVE-2019-1983

5.3 · MEDIUM
Published Sep 23, 2020 cisco CWE-20 EPSS 1.86% (78th pctl)

Overview

CVE-2019-1983 is a medium-severity vulnerability affecting cisco content_security_management_appliance. It was published on September 23, 2020 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to cause repeated crashes in some internal processes that are running on the affected devices, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation of email attachments. An attacker could exploit this vulnerability by sending an email message with a crafted attachment through an affected device. A successful exploit could allow the attacker to cause specific processes to crash repeatedly, resulting in the complete unavailability of both the Cisco Advanced Malware Protection (AMP) and message tracking features and in severe performance degradation while processing email. After the affected processes restart, the software resumes filtering for the same attachment, causing the affected processes to crash and restar

Remediation

Check the references section for vendor advisories and patches from cisco. Update content_security_management_appliance to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
cisco asyncos >= 0, < 11.0.1-161 Affected

Frequently Asked Questions

What is CVE-2019-1983?

CVE-2019-1983 is a medium-severity vulnerability affecting cisco content_security_management_appliance. It was published on September 23, 2020 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2019-1983?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-1983?

Check the references section for vendor advisories and patches from cisco. Update content_security_management_appliance to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-1983?

CyberStrike's AI-powered security agents can automatically detect CVE-2019-1983 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.