CVE-2018-15173
Nmap through 7.70, when the -sV option is used, allows remote attackers to cause a denial of...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-15173- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-15173- Updated
- 2026-11-02
EUVDEUVD-2018-7053 No score
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.
- Record
EUVD-2018-7053- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wp69-235q-254j
Nmap through 7.70, when the -sV option is used, allows remote attackers to cause a denial of...
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.
- Record
GHSA-wp69-235q-254j- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVALPINE-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.
- Record
ALPINE-CVE-2018-15173- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
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.
- Record
CVE-2018-15173- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 13 moreShow less
OSVDEBIAN-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.
- Record
DEBIAN-CVE-2018-15173- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-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.
- Record
UBUNTU-CVE-2018-15173- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVMGASA-2019-0294 No score
Updated nmap packages fix security vulnerability
Updated nmap packages fix security vulnerability:
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 (CVE-2018-15173).
- Record
MGASA-2019-0294- Updated
- 2026-11-02
OSVopenSUSE-SU-2019:1462-1 No score
Security update for nmap
This update for nmap fixes the following issues:
Security issue fixed:
- CVE-2018-15173: Fixed a remote denial of service attack via a crafted TCP-based service (bsc#1104139).
Non-security issue fixed:
- Add missing runtime dependency python-xml which prevented zenmap from starting (bsc#1133512).
This update was imported from the SUSE:SLE-15:Update update project.
- Record
openSUSE-SU-2019:1462-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2019:2198-1 No score
Security update for nmap
This update for nmap fixes the following issues:
Security issue fixed:
- CVE-2017-18594: Fixed a denial of service condition due to a double free when an SSH connection fails. (bsc#1148742)
Non-security issue fixed:
- Fixed a regression in the version scanner caused, by the fix for CVE-2018-15173. (bsc#1135350)
This update was imported from the SUSE:SLE-15:Update update project.
- Record
openSUSE-SU-2019:2198-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2019:2200-1 No score
Security update for nmap
This update for nmap fixes the following issues:
Security issue fixed:
- CVE-2017-18594: Fixed a denial of service condition due to a double free when an SSH connection fails. (bsc#1148742)
Non-security issue fixed:
- Fixed a regression in the version scanner caused, by the fix for CVE-2018-15173. (bsc#1135350)
This update was imported from the SUSE:SLE-15:Update update project.
- Record
openSUSE-SU-2019:2200-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:11094-1 No score
ncat-7.92-2.1 on GA media
These are all security issues fixed in the ncat-7.92-2.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11094-1- Updated
- 2026-11-02
OSVSUSE-SU-2019:1286-1 No score
Security update for nmap
This update for nmap fixes the following issues:
Security issue fixed:
- CVE-2018-15173: Fixed a remote denial of service attack via a crafted TCP-based service (bsc#1104139).
- Record
SUSE-SU-2019:1286-1- Updated
- 2026-11-02
OSVSUSE-SU-2019:1290-1 No score
Security update for nmap
This update for nmap fixes the following issues:
Security issue fixed:
- CVE-2018-15173: Fixed a remote denial of service attack via a crafted TCP-based service (bsc#1104139).
Non-security issue fixed:
- Add missing runtime dependency python-xml which prevented zenmap from starting (bsc#1133512).
- Record
SUSE-SU-2019:1290-1- Updated
- 2026-11-02
OSVSUSE-SU-2019:1290-2 No score
Security update for nmap
This update for nmap fixes the following issues:
Security issue fixed:
- CVE-2018-15173: Fixed a remote denial of service attack via a crafted TCP-based service (bsc#1104139).
Non-security issue fixed:
- Add missing runtime dependency python-xml which prevented zenmap from starting (bsc#1133512).
- Record
SUSE-SU-2019:1290-2- Updated
- 2026-11-02
OSVSUSE-SU-2019:2425-1 No score
Security update for nmap
This update for nmap fixes the following issues:
Security issue fixed:
- CVE-2017-18594: Fixed a denial of service condition due to a double free when an SSH connection fails. (bsc#1148742)
Non-security issue fixed:
- Fixed a regression in the version scanner caused, by the fix for CVE-2018-15173. (bsc#1135350)
- Record
SUSE-SU-2019:2425-1- Updated
- 2026-11-02
OSVSUSE-SU-2019:2425-2 No score
Security update for nmap
This update for nmap fixes the following issues:
Security issue fixed:
- CVE-2017-18594: Fixed a denial of service condition due to a double free when an SSH connection fails. (bsc#1148742)
Non-security issue fixed:
- Fixed a regression in the version scanner caused, by the fix for CVE-2018-15173. (bsc#1135350)
- Record
SUSE-SU-2019:2425-2- Updated
- 2026-11-02
OSVSUSE-SU-2019:2426-1 No score
Security update for nmap
This update for nmap fixes the following issues:
- Fixed a regression in the version scanner, caused by the fix for CVE-2018-15173. (bsc#1135350)
- Record
SUSE-SU-2019:2426-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nmapAlpine:v3.10 |
before 7.70-r4 | 7.70-r4 |
nmapAlpine:v3.11 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.12 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.13 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.14 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.15 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.16 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.17 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.18 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.19 |
before 7.80-r0 | 7.80-r0 |
Show 35 moreShow less
| Package | Affected | Fixed |
|---|---|---|
nmapAlpine:v3.20 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.21 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.22 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.23 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.24 |
before 7.80-r0 | 7.80-r0 |
nmapAlpine:v3.7 |
before 7.60-r3 | 7.60-r3 |
nmapAlpine:v3.8 |
before 7.70-r2 | 7.70-r2 |
nmapAlpine:v3.9 |
before 7.70-r4 | 7.70-r4 |
nmapDebian:12 |
All versions, plus listed versions 7.93+dfsg1-17.94+dfsg1-17.94+dfsg1-1~exp17.94+dfsg1-27.94+dfsg1-3 Show 16 moreShow less7.94+dfsg1-3~bpo12+17.94+dfsg1-47.94+git20230807.3be01efb1+dfsg-17.94+git20230807.3be01efb1+dfsg-1~bpo12+17.94+git20230807.3be01efb1+dfsg-27.94+git20230807.3be01efb1+dfsg-37.94+git20230807.3be01efb1+dfsg-47.94+git20230807.3be01efb1+dfsg-4~bpo12+17.95+dfsg-17.95+dfsg-27.95+dfsg-37.98+dfsg-17.98+dfsg-1~bpo13+17.99+dfsg-17.99+dfsg-27.991+dfsg-1 |
None known |
nmapDebian:13 |
All versions, plus listed versions 7.95+dfsg-37.98+dfsg-17.98+dfsg-1~bpo13+17.99+dfsg-17.99+dfsg-27.991+dfsg-1 |
None known |
nmapDebian:14 |
All versions, plus listed versions 7.95+dfsg-37.98+dfsg-17.98+dfsg-1~bpo13+17.99+dfsg-17.99+dfsg-27.991+dfsg-1 |
None known |
nmapMageia:7 |
before 7.70-2.1.mga7 | 7.70-2.1.mga7 |
nmapSUSE:Linux Enterprise Server 12 SP3 |
before 6.46-3.3.1 | 6.46-3.3.1 |
nmapSUSE:Linux Enterprise Server for SAP Applications 12 SP3 |
before 6.46-3.3.1 | 6.46-3.3.1 |
nmapSUSE:Linux Enterprise Server 12 SP4 |
before 6.46-3.3.1 | 6.46-3.3.1 |
nmapSUSE:Linux Enterprise Server for SAP Applications 12 SP4 |
before 6.46-3.3.1 | 6.46-3.3.1 |
nmapSUSE:Linux Enterprise Module for Basesystem 15 |
before 7.70-3.5.1 | 7.70-3.5.1 |
nmapSUSE:Linux Enterprise Module for Package Hub 15 |
before 7.70-3.5.1 | 7.70-3.5.1 |
nmapSUSE:Linux Enterprise Module for Basesystem 15 SP1 |
before 7.70-3.5.1 | 7.70-3.5.1 |
nmapSUSE:Linux Enterprise Module for Basesystem 15 From an advisory covering 2 CVEs |
before 7.70-3.12.1 | 7.70-3.12.1 |
nmapSUSE:Linux Enterprise Module for Basesystem 15 SP1 From an advisory covering 2 CVEs |
before 7.70-3.12.1 | 7.70-3.12.1 |
nmapSUSE:Linux Enterprise Module for Package Hub 15 From an advisory covering 2 CVEs |
before 7.70-3.12.1 | 7.70-3.12.1 |
nmapSUSE:Linux Enterprise Module for Basesystem 15 SP2 From an advisory covering 2 CVEs |
before 7.70-3.12.1 | 7.70-3.12.1 |
nmapSUSE:Linux Enterprise Module for Package Hub 15 SP1 From an advisory covering 2 CVEs |
before 7.70-3.12.1 | 7.70-3.12.1 |
nmapSUSE:Linux Enterprise Module for Package Hub 15 SP2 From an advisory covering 2 CVEs |
before 7.70-3.12.1 | 7.70-3.12.1 |
nmapSUSE:Linux Enterprise Server 12 SP4 |
before 6.46-3.6.1 | 6.46-3.6.1 |
nmapSUSE:Linux Enterprise Server for SAP Applications 12 SP4 |
before 6.46-3.6.1 | 6.46-3.6.1 |
nmapUbuntu:14.04:LTS |
All versions, plus listed versions 6.40-0.1ubuntu16.40-0.2ubuntu1 |
None known |
nmapUbuntu:16.04:LTS |
All versions, plus listed versions 6.47-77.01-2ubuntu17.01-2ubuntu2 |
None known |
nmapUbuntu:18.04:LTS |
All versions, plus listed versions 7.60-1ubuntu17.60-1ubuntu27.60-1ubuntu37.60-1ubuntu47.60-1ubuntu5 |
None known |
nmapopenSUSE:Leap 15.0 |
before 7.70-lp151.3.3.1 | 7.70-lp151.3.3.1 |
nmapopenSUSE:Leap 15.1 |
before 7.70-lp151.3.3.1 | 7.70-lp151.3.3.1 |
nmapopenSUSE:Leap 15.0 From an advisory covering 2 CVEs |
before 7.70-lp150.2.9.1 | 7.70-lp150.2.9.1 |
nmapopenSUSE:Leap 15.1 From an advisory covering 2 CVEs |
before 7.70-lp151.3.9.1 | 7.70-lp151.3.9.1 |
nmapopenSUSE:Tumbleweed |
before 7.92-2.1 | 7.92-2.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-15173 is a high vulnerability (CVSS 7.5) in Nmap, published August 8, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.85%, the 93rd percentile. Fixed in nmap 7.70-r4.
References
code610.blogspot.com/2018/07/crashing-nmap-770.html
lists.opensuse.org/opensuse-security-announce/2019-05/msg00067.html
security.netapp.com/advisory/ntap-20200827-0004
Show 24 moreShow less
nvd.nist.gov/vuln/detail/CVE-2018-15173
github.com/advisories/GHSA-wp69-235q-254j
security.alpinelinux.org/vuln/CVE-2018-15173
security-tracker.debian.org/tracker/CVE-2018-15173
advisories.mageia.org/MGASA-2019-0294.html
bugs.mageia.org/show_bug.cgi?id=25262
suse.com/support/update/announcement/2019/suse-su-20191286-1
bugzilla.suse.com/1104139
ubuntu.com/security/CVE-2018-15173
seclists.org/nmap-announce/2019/0
cve.org/CVERecord?id=CVE-2018-15173