What is CVE-2021-47263?

CVE-2021-47263 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2021-47263 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47263?

CVE-2021-47263 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-2021-47263?

No patch is currently available for CVE-2021-47263. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47263 actively exploited?

CVE-2021-47263 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47263

Medium

In the Linux kernel, the following vulnerability has been resolved: gpio: wcd934x: Fix shift-out-of-bounds error bit-mask for pins 0 to 4 is BIT(0) to BIT(4) however we ended up with BIT(n - 1) which is not right, and this was caught by below usban check UBSAN: shift-out-of-bounds in drivers/gpio/gpio-wcd934x.c:34:14

Package Linux Kernel

Published 2024-05-21

Last modified 2025-04-30

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

References

The following references provide additional information about CVE-2021-47263 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/dbec64b11c65d74f31427e2b9d5746fbf17bf840
Patch
Kernel patch commit
https://git.kernel.org/stable/c/dd55331d493b7ea75c5db1f24d6822946fde2862
Patch
Kernel patch commit
https://git.kernel.org/stable/c/e0b518a2eb44d8a74c19e50f79a8ed393e96d634
Patch

Details

CVE ID CVE-2021-47263

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-04-30

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47263?

CVE-2021-47263 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2021-47263 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47263?

CVE-2021-47263 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-2021-47263?

No patch is currently available for CVE-2021-47263. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47263 actively exploited?

No — CVE-2021-47263 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.