CVE-2020-29368

mediumpriority · track · 28EPSS 0.004 · 30 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.36% (30th) EPSS

CVSS 6.9 · medium

Is it mine?

18 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-28

An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.

cvss

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

7.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7

v2.06.9mediumAV:L/AC:M/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.4 · impact 10

v3.17highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1 · impact 5.9

v3.17highAV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.4mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-362USprimaryCWE-362US

affected products (18)

Products and version ranges known to be affected.

Google Androidall versionscert_bundDEcpe:/o:google:android:-
n/a n/a≤ n/aenisa_euvdEU
Сообщество свободного программного обеспечения Linux4.10 → 4.14.184fstec_bduRU
Сообщество свободного программного обеспечения Linux4.15 → 4.19.128fstec_bduRU
Сообщество свободного программного обеспечения Linux4.20 → 5.4.47fstec_bduRU
Сообщество свободного программного обеспечения Linux4.5.5 → 4.9.227fstec_bduRU
Сообщество свободного программного обеспечения Linux5.5 → 5.7.4fstec_bduRU
linux linux kernel4.10 → 4.14.185nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel4.15 → 4.19.129nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel4.20 → 5.4.48nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel4.5.5 → 4.9.228nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel5.5 → 5.7.5nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
netapp cloud backupall versionsnvdUScpe:2.3:a:netapp:cloud_backup:*:*:*:*:*:*:*:*
netapp element softwareall versionsnvdUScpe:2.3:a:netapp:element_software:*:*:*:*:*:*:*:*
netapp h410c firmwareall versionsnvdUScpe:2.3:o:netapp:h410c_firmware:*:*:*:*:*:*:*:*
netapp hci bootstrap osall versionsnvdUScpe:2.3:o:netapp:hci_bootstrap_os:*:*:*:*:*:*:*:*
netapp hci management nodeall versionsnvdUScpe:2.3:a:netapp:hci_management_node:*:*:*:*:*:*:*:*
netapp solidfireall versionsnvdUScpe:2.3:a:netapp:solidfire:*:*:*:*:*:*:*:*

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-0112Google Android: Mehrere Schwachstellen ermöglichen PrivilegieneskalationDeutsch2022-03-07csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Google Android ausnutzen, um seine Privilegien zu erhöhen, vertrauliche Informationen offenzulegen, beliebigen Code zur Ausführung zu bringen und einen Denial-of-Service-Zustand auszulösen.
WID-SEC-W-2022-0515IBM Spectrum Protect: Mehrere SchwachstellenDeutsch2022-06-29csaf · cert_bundDE
Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in IBM Spectrum Protect ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, beliebigen Code auszuführen, seine Rechte zu erweitern oder beliebigen Code mit Root-Rechten auszuführen.
ASB-A-1747380292022-03-01vendor · osvUS
In __split_huge_pmd of huge_memory.c, there is a possible incorrectly mapped page due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv cert_bund nvd NVD CVE.org MITRE

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

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+4150 more

references (46)

External citations — patches, advisories, analysis.

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