5.5

CVE-2026-43473: scsi: mpi3mr: Add NULL checks when resetting request and reply queues

Analyzed
AliasesUBUNTU-CVE-2026-43473DEBIAN-CVE-2026-43473
Published 08-05-2026Last modified 11-05-2026

Vulnerability summary

CVE-2026-43473 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.11% chance of exploitation in the next 30 days, higher than 1.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.11%
0%100%
Low · -0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 39 · Related 39
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:22809-1SUSE-SU-2026:22810-1SUSE-SU-2026:22903-1SUSE-SU-2026:22904-1SUSE-SU-2026:23066-1

Timeline

  1. 08-05-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Add NULL checks when resetting request and reply queues The driver encountered a crash during resource cleanup when the reply and request queues were NULL due to freed memory. This issue occurred when the creation of reply or request queues failed, and the driver freed the memory first, but attempted to mem set the content of the freed memory, leading to a system crash. Add NULL pointer checks for reply and request queues before accessing the reply/request memory during cleanup

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.11%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < 7df0296ad4e9253d12c6dbe7f120044dddc95600 | ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < 7da755e0d02e9ca035065127e108d1fed8950dc8 | ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < 78d3f201f8b609928eade53cf03a52df5415aaf7 | ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < e978a36f332ede78eb4de037b517db16265d420d | ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < 220d7ca70611a73d50ef8e9edac630ed1ececb7c | ≥ fe6db615156573d3f6a37564b8a590cb03bbaf25, < fa96392ebebc8fade2b878acb14cce0f71016503 | 5.17
  • linux_kernel≥ 5.17, < 6.1.167 | ≥ 6.2, < 6.6.130 | ≥ 6.7, < 6.12.78 | ≥ 6.13, < 6.18.19 | ≥ 6.19, < 6.19.9 | 7.0:rc1
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.10-1

3 vendors · 160 products

References

37 links
Show all 37 references