What is CVE-2020-36775?

CVE-2020-36775 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Locking flaw (CWE-667). CVE-2020-36775 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2020-36775?

CVE-2020-36775 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2020-36775?

No patch is currently available for CVE-2020-36775. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2020-36775 actively exploited?

CVE-2020-36775 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/667.html

CVE-2020-36775

Medium

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid potential deadlock Using f2fs_trylock_op() in f2fs_write_compressed_pages() to avoid potential deadlock like we did in f2fs_write_single_data_page().

Package Linux Kernel

Published 2024-02-26

Last modified 2025-07-11

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-667

CVE-2020-36775 is a Improper Locking vulnerability

What is Improper Locking?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2020-36775 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/8e8542437bb4070423c9754d5ba270ffdbae8c8d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/df77fbd8c5b222c680444801ffd20e8bbc90a56e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/0478ccdc8ea016de1ebaf6fe6da0275c2b258c5b
Patch

Details

CVE ID CVE-2020-36775

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-26

Modified 2025-07-11

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2020-36775?

CVE-2020-36775 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Locking flaw (CWE-667) . CVE-2020-36775 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2020-36775?

CVE-2020-36775 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2020-36775?

No patch is currently available for CVE-2020-36775. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2020-36775 actively exploited?

No — CVE-2020-36775 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. View CWE-667 on MITRE CWE →