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CVE-2021-28042

7.8 · HIGH
Published Mar 5, 2021 deutschepost CWE-22 EPSS 3.31% (88th pctl)

Overview

CVE-2021-28042 is a high-severity vulnerability affecting deutschepost mailoptimizer. It was published on March 5, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical Description

Deutsche Post Mailoptimizer 4.3 before 2020-11-09 allows Directory Traversal via a crafted ZIP archive to the Upload feature or the MO Connect component. This can lead to remote code execution.

Remediation

Check the references section for vendor advisories and patches from deutschepost. Update mailoptimizer 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

Frequently Asked Questions

What is CVE-2021-28042?

CVE-2021-28042 is a high-severity vulnerability affecting deutschepost mailoptimizer. It was published on March 5, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-28042?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-28042?

Check the references section for vendor advisories and patches from deutschepost. Update mailoptimizer 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-2021-28042?

CyberStrike's AI-powered security agents can automatically detect CVE-2021-28042 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.