CVE-2023-53376: scsi: mpi3mr: Use number of bits to manage bitmap sizes

mediumCVSS 6CVE-2023-53376

CSIRTS triage

product: mpi3mrOther

What: The mpi3mr SCSI driver has a bitmap size management issue related to number of bits.
Who is affected: Systems using mpi3mr SCSI controller driver.
Urgency: Medium severity (CVSS 6.0) indicates standard patch priority.
Action: Update to Linux kernel version with corrected bitmap sizing in mpi3mr driver.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 6
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-53376

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2023-533760.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2023-53376	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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