CVE-2019-20934

mediumpriority · track · 21EPSS 0.003 · 24 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.32% (24th) EPSS

CVSS 5.4 · medium

Is it mine?

14 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.

cvss

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

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.4mediumAV:L/AC:M/Au:N/C:P/I:N/A:Cprimary · NVD / NIST USexploitability 3.4 · impact 7.8

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

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

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USprimaryCWE-416US

affected products (14)

Products and version ranges known to be affected.

Juniper Contrail Service Orchestrationall versionscert_bundDEcpe:/a:juniper:contrail_service_orchestration:-
Juniper Junos Space <21.3R1all versionscert_bundDE
Juniper Junos Space Security Director <24.1R4all versionscert_bundDE
Juniper Junos Space≤ Security Director <24.1R4cert_bundDE
Juniper Junos Space< 21.3R1cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
Сообщество свободного программного обеспечения Linux4.0 → 4.4.186fstec_bduRU
Сообщество свободного программного обеспечения Linux4.10 → 4.14.135fstec_bduRU
Сообщество свободного программного обеспечения Linux4.15 → 4.19.63fstec_bduRU
Сообщество свободного программного обеспечения Linux4.20 → 5.2.5fstec_bduRU
Сообщество свободного программного обеспечения Linux4.5 → 4.9.186fstec_bduRU
linux linux kernel4.19 → 4.19.64nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel5.2 → 5.2.17nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel= 5.3nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0063Juniper Junos Space: Mehrere SchwachstellenDeutsch2022-01-12csaf · cert_bundDE
Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Juniper Junos Space ausnutzen, um Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand auszulösen, beliebigen Code auszuführen und seine Privilegien zu erweitern.

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 NVD CVE.org MITRE

published 2020-11-28modified 2026-06-17

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+12230 more

references (24)

External citations — patches, advisories, analysis.

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