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Vulnerability details: VCID-19va-75wc-pbez
Vulnerability ID VCID-19va-75wc-pbez
Aliases CVE-2018-16860
Summary A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-358 Improperly Implemented Security Check for Standard
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-16860.json
epss 0.01992 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.01992 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.01992 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.01992 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.01992 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.01992 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.01992 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.01992 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
epss 0.02412 https://api.first.org/data/v1/epss?cve=CVE-2018-16860
cvssv3 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.0 https://nvd.nist.gov/vuln/detail/CVE-2018-16860
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-16860
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-16860.json
https://api.first.org/data/v1/epss?cve=CVE-2018-16860
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16860
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12098
http://seclists.org/fulldisclosure/2019/Aug/11
http://seclists.org/fulldisclosure/2019/Aug/13
http://seclists.org/fulldisclosure/2019/Aug/14
http://seclists.org/fulldisclosure/2019/Aug/15
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://seclists.org/bugtraq/2019/Aug/21
https://seclists.org/bugtraq/2019/Aug/22
https://seclists.org/bugtraq/2019/Aug/23
https://seclists.org/bugtraq/2019/Aug/25
https://support.apple.com/HT210346
https://support.apple.com/HT210348
https://support.apple.com/HT210351
https://support.apple.com/HT210353
https://www.samba.org/samba/security/CVE-2018-16860.html
https://www.synology.com/security/advisory/Synology_SA_19_23
1705877 https://bugzilla.redhat.com/show_bug.cgi?id=1705877
928966 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=928966
cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
CVE-2018-16860 https://nvd.nist.gov/vuln/detail/CVE-2018-16860
USN-3976-1 https://usn.ubuntu.com/3976-1/
USN-3976-2 https://usn.ubuntu.com/3976-2/
USN-5675-1 https://usn.ubuntu.com/5675-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-16860.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-16860
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-16860
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.82865
EPSS Score 0.01992
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:30:02.840550+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/edge/main.json 37.0.0