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CVE-2018-15173

27
FAUCET Score

CVE-2018-15173 describes a denial-of-service vulnerability in Nmap versions up to 7.70. When Nmap is used with the -sV option, a remote attacker can crash the application through stack consumption by providing a specially crafted TCP-based service. This vulnerability has a CVSS score of 7.5 (HIGH), indicating it can be exploited remotely with low complexity and no user interaction, leading to a complete loss of availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.70CPE matchmatch criteria
cpe:2.3:a:nmap:nmap:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.08%
Probability of exploitation in next 30 days
EPSS Percentile
92.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0608 is in the 87th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2018-15173Low

nmap: Stack exhausation when -sV option is used allows for DoS

Jul 29, 2018

References

code610.blogspot.com / 2018/07/crashing-nmap-760.html
ExploitThird Party Advisory
code610.blogspot.com / 2018/07/crashing-nmap-770.html
ExploitThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-05/msg00067.html
lists.opensuse.org / opensuse-security-announce/2019-09/msg00073.html
lists.opensuse.org / opensuse-security-announce/2019-09/msg00075.html
security.netapp.com / advisory/ntap-20200827-0004