CVE-2018-15173

CVE-2018-15173 is a high-severity vulnerability in Nmap with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Nmap through 7.70, when the -sV option is used, allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted TCP-based service.

Frequently asked questions

What is CVE-2018-15173?
Nmap through 7.70, when the -sV option is used, allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted TCP-based service.
How severe is CVE-2018-15173?
CVE-2018-15173 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-15173 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15173?
CVE-2018-15173 affects Nmap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15173?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-15173 published?
CVE-2018-15173 was published on 2018-08-08 and last updated on 2026-06-17.

References

Affected products (1)

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