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Vulnerability details: VCID-5j51-kyj4-gkag
Vulnerability ID VCID-5j51-kyj4-gkag
Aliases CVE-2018-6954
Summary systemd: Mishandled symlinks in systemd-tmpfiles allows local users to obtain ownership of arbitrary files
Status Published
Exploitability 0.5
Weighted Severity 7.0
Risk 3.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-59 Improper Link Resolution Before File Access ('Link Following')
System Score Found at
cvssv3.1 7.8 http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
ssvc Track http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
cvssv3 7.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-6954.json
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2018-6954
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2018-6954
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2018-6954
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2018-6954
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2018-6954
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2018-6954
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2018-6954
epss 0.00127 https://api.first.org/data/v1/epss?cve=CVE-2018-6954
cvssv3 7.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.8 https://github.com/systemd/systemd/issues/7986
ssvc Track https://github.com/systemd/systemd/issues/7986
cvssv3.1 7.8 https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
ssvc Track https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
cvssv3.1 7.8 https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
ssvc Track https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
archlinux Medium https://security.archlinux.org/AVG-615
cvssv3.1 7.8 https://usn.ubuntu.com/3816-1/
ssvc Track https://usn.ubuntu.com/3816-1/
cvssv3.1 7.8 https://usn.ubuntu.com/3816-2/
ssvc Track https://usn.ubuntu.com/3816-2/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-6954.json
https://api.first.org/data/v1/epss?cve=CVE-2018-6954
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6954
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1545017 https://bugzilla.redhat.com/show_bug.cgi?id=1545017
7986 https://github.com/systemd/systemd/issues/7986
890779 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=890779
ASA-201901-4 https://security.archlinux.org/ASA-201901-4
AVG-615 https://security.archlinux.org/AVG-615
USN-3816-1 https://usn.ubuntu.com/3816-1/
USN-3816-2 https://usn.ubuntu.com/3816-2/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-06-09T15:53:55Z/ Found at http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
Vector: CVSS:3.0/AV:L/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-2018-6954.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

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none
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N 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

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none

required

unchanged

changed

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none

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low

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none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/systemd/systemd/issues/7986
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-06-09T15:53:55Z/ Found at https://github.com/systemd/systemd/issues/7986
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-06-09T15:53:55Z/ Found at https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-06-09T15:53:55Z/ Found at https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://usn.ubuntu.com/3816-1/
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-06-09T15:53:55Z/ Found at https://usn.ubuntu.com/3816-1/
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Found at https://usn.ubuntu.com/3816-2/
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: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2025-06-09T15:53:55Z/ Found at https://usn.ubuntu.com/3816-2/
Exploit Prediction Scoring System (EPSS)
Percentile 0.31939
EPSS Score 0.00127
Published At April 13, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T14:26:29.703191+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-6954.json 38.0.0