Cyber Resilience

CVE-2023-23003

Medium

Published: 01 March 2023

Published
01 March 2023
Modified
20 March 2025
KEV Added
—
Patch
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CVSS Score v3.1 4.0 CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0013 32.1th percentile
Risk Priority 8 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-23003 is a medium-severity Unchecked Return Value (CWE-252) vulnerability in Linux Linux Kernel. Its CVSS base score is 4.0 (Medium).

Operationally, ranked at the 32.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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

CWE(s)
CWE-252

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

linux
linux kernel
≤ 5.16

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References