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CVE-2020-28019

7.5 · HIGH

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences.

Published May 6, 2021CWE-665EPSS 61.66%

Overview

CVE-2020-28019 is a high-severity vulnerability. It was published on May 6, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refwww.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28019-BDATA.txtRefwww.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28019-BDATA.txt

How CyberStrike helps

Frequently asked questions

What is CVE-2020-28019?

CVE-2020-28019 is a high-severity vulnerability. It was published on May 6, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2020-28019?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-28019?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2020-28019?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-28019 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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