What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 6.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-26 · updated 2026-06-17
• Weakness: CWE-674

Description

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 products

• ZenMap: 7.70

References

• https://nmap.org/dist/nmap-7.70-setup.exe
• https://www.exploit-db.com/exploits/45357
• https://www.vulncheck.com/advisories/nmap-denial-of-service-via-xml-entity-expansion

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