What is CVE-2023-23003?

CVE-2023-23003 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.0 out of 10. CVE-2023-23003 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-23003?

CVE-2023-23003 has a CVSS score of 4.0 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-23003?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-23003 patch availability.

Is CVE-2023-23003 actively exploited?

CVE-2023-23003 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-23003

Medium

In the Linux kernel before 5.16, tools/perf/util/expr.c lacks a check for the hashmap__new return value.

Package Linux Kernel

Published 2023-03-01

Last modified 2025-03-20

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.0

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-252

CVE-2023-23003 is classified as CWE-252

See CWE-252 on MITRE CWE for full details on this weakness type.

References

3 total

Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16

Mailing List Patch Vendor Advisory
GitHub
https://github.com/torvalds/linux/commit/0a515a06c5ebfa46fee3ac519e418f801e718da4

Patch
Security
https://security.netapp.com/advisory/ntap-20230331-0003/

Third Party Advisory

Details

CVE ID CVE-2023-23003

Severity Medium

CVSS score 4.0 / 10

CVSS version 3.1

Published 2023-03-01

Modified 2025-03-20

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-23003?

CVE-2023-23003 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.0 out of 10 . CVE-2023-23003 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-23003?

CVE-2023-23003 has a CVSS score of 4.0 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-23003?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-23003 patch availability.
Is CVE-2023-23003 actively exploited?

No. CVE-2023-23003 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.