01 Record

CVE-2026-43150

perf/arm-cmn: Reject unsupported hardware configurations

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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02 Description

perf/arm-cmn: Reject unsupported hardware configurations

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.2% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-19.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-05-06 11:27Z5 MO AGO

Last updated

2026-10-19 19:16Z10 DAYS AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

CWE-122Heap-based Buffer OverflowVariant
CWE-787Out-of-bounds WriteBase
CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

408bb6b49095328ab160ff8f56b4d538d3e00d3ebcbc3941627f7e3610e8cf52

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux28fa550a49e818d6445e787f584759b1bf21d9d4 to < 7e2c200010aa93fa78201da959b4ac6b9f8fed0b, 7819e05a0dceac20c5ff78ec9b252faf3b76b824 to < d3e837e11ee9ed08df229272319199003ba00379, 7819e05a0dceac20c5ff78ec9b252faf3b76b824 to < 00d69f21ef2ab00e6156c764d89e2b3539eb2f33, 7819e05a0dceac20c5ff78ec9b252faf3b76b824 to < 08c7eadd8a934a1968e1aeeee8b61b853b99fb3a, 7819e05a0dceac20c5ff78ec9b252faf3b76b824 to < a251d866f50b6a4c95901fa722025065679c2eca, 7819e05a0dceac20c5ff78ec9b252faf3b76b824 to < 36c0de02575ce59dfd879eb4ef63d53a68bbf9ce, 6.1.63 to < 6.1.165, 6.5—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/7e2c200010aa93fa78201da959b4ac6b9f8fed0b
git.kernel.orghttps://git.kernel.org/stable/c/d3e837e11ee9ed08df229272319199003ba00379
git.kernel.orghttps://git.kernel.org/stable/c/00d69f21ef2ab00e6156c764d89e2b3539eb2f33
git.kernel.orghttps://git.kernel.org/stable/c/08c7eadd8a934a1968e1aeeee8b61b853b99fb3a
git.kernel.orghttps://git.kernel.org/stable/c/a251d866f50b6a4c95901fa722025065679c2eca
git.kernel.orghttps://git.kernel.org/stable/c/36c0de02575ce59dfd879eb4ef63d53a68bbf9ce

07 Fixed in

Debian 12

linux
Fixed in 6.1.170-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.85-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.19.6-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.