CVE-2018-13405

mediumpriority · track · 41EPSS 0.010 · 64 %ileexploit · functionalDEEURUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · functional
Likely / severe?
1.04% (64th) EPSS
CVSS 4.6 · medium
Is it mine?
106 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.

01

cvss

Technical severity, 0–10. One row per scoring source.

7.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–7.8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4
v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9
v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.4highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USprimaryCWE-269US
03

exploits (1)

Public proof-of-concept and weaponised exploit code.

04

affected products (106)

Products and version ranges known to be affected.

showing 20 of 106
05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2022-0959Linux Kernel: Mehrere Schwachstellen ermöglichen Privilegieneskalation und Denial of ServiceDeutsch2018-07-08csaf · cert_bundDE

    Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um seine Privilegien zu erhöhen und um einen Denial of Service Zustand herbeizuführen.

  • WID-SEC-W-2023-1432Siemens SIMATIC S7: Mehrere SchwachstellenDeutsch2023-06-12csaf · cert_bundDE

    Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter, anonymer, authentisierter, physischer oder lokaler Angreifer kann mehrere Schwachstellen in Siemens SIMATIC S7 ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, seine Privilegien zu erweitern und Daten zu manipulieren.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundnvdNVDCVE.orgMITRE
published 2018-07-06modified 2026-06-17
09

references (121)

External citations — patches, advisories, analysis.

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