CVE-2023-30571

mediumpriority · track · 21EPSS 0.002 · 9 %ileDEEUFRRUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.19% (9th) EPSS

CVSS 5.3 · medium

Is it mine?

6 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories.

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.9–5.3

v3.15.3mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:Hprimary · NVD / NIST USexploitability 1 · impact 4.2

v3.15.3mediumAV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:Hsecondary · FSTEC (BDU) RU

v3.13.9lowCVSS:3.1/AC:H/AV:L/A:N/C:L/I:L/PR:L/S:C/UI:Rsecondary · ENISA EU

v3.13.9lowCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:Nsecondary · cve@mitre.org USexploitability 0.8 · impact 2.7

v3.14.9mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USprimaryCWE-362US

affected products (6)

Products and version ranges known to be affected.

Open Source libarchive <= 3.6.2all versionscert_bundDEcpe:/a:libarchive:libarchive:3.6.2
n/a n/a≤ n/aenisa_euvdEU
АО «ИВК» Альт 8 СПall versionsfstec_bduRU
ООО «Ред Софт» РЕД ОС≤ 7.3fstec_bduRU
Сообщество свободного программного обеспечения libarchive≤ 3.6.2fstec_bduRU
libarchive libarchive≤ 3.6.2nvdUScpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-1314libarchive: Schwachstelle ermöglicht Manipulation von DateienDeutsch2023-05-29csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in libarchive ausnutzen, um Dateien zu manipulieren.
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd certfr NVD CVE.org MITRE

published 2023-05-29modified 2026-06-17

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+4148 more

references (7)

External citations — patches, advisories, analysis.

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