CVE-2018-25282: Nmap 7.70 Denial of Service via XML Entity Expansion

Published Apr 26, 2026
·
Updated

Nmap 7.70 contains a denial of service vulnerability that allows local attackers to crash the application by processing malicious XML files with exponential entity expansion. Attackers can create a crafted XML file with nested entity definitions and open it through ZenMap's scan import functionality to cause the program to consume excessive system resources and crash.

Affected Software

2 affected components
Nmap Nmap=7.70
Nmap Zenmap=7.70

Event History

Apr 26, 2026
CVE Published
via MITRE·01:19 PM
Data Sourced
via MITRE·01:19 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:17 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2018-25282?

CVE-2018-25282 is classified as a high severity denial of service vulnerability.

2

How do I fix CVE-2018-25282?

To mitigate CVE-2018-25282, upgrade Nmap to a version that is not vulnerable, such as versions after 7.70.

3

Who is affected by CVE-2018-25282?

CVE-2018-25282 affects both Nmap and Zenmap running version 7.70.

4

What is the impact of CVE-2018-25282?

The impact of CVE-2018-25282 is the potential to crash the Nmap application when processing specially crafted XML files.

5

Can CVE-2018-25282 be exploited remotely?

CVE-2018-25282 requires local access to exploit, as it involves processing XML files.

Contact

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