01 Record

CVE-2026-53281

iommu/vt-d: Avoid NULL pointer dereference or refcount corruption

HighPUBLISHEDCNA: Linux

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

View raw JSON

02 Description

iommu/vt-d: Avoid NULL pointer dereference or refcount corruption

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.13% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 3.0% of scored records. A rank, not a probability.
NVD base score: 8.8 (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:C/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-07-29.
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

2026-06-26 19:40Z2 MO AGO

Last updated

2026-08-05 12:34Z1 MO AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

ff2c3a9cbf1548d4c7f4595416f8ac9e3f88e3ce1b4bae604b65682d4d5bda94

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux60f030f7418d3f1d94f2fb207fe3080e1844630b to < 9022cb9ac0c2a72a57fa8ebf92ac74f953ca0153, 60f030f7418d3f1d94f2fb207fe3080e1844630b to < cdfe3c9f2c9e28a8651ee463c88ad191ced2f840, 60f030f7418d3f1d94f2fb207fe3080e1844630b to < 79ea2feb917b05366b49d85573c9c5331f043b2c, 68ec78beb4a3fb0877cbaaf49758c85410c05977, df96876be3b064aefc493f760e0639765d13ed0d, 6.12.57 to < 6.13, 6.13.3 to < 6.14, 6.14—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/9022cb9ac0c2a72a57fa8ebf92ac74f953ca0153
git.kernel.orghttps://git.kernel.org/stable/c/cdfe3c9f2c9e28a8651ee463c88ad191ced2f840
git.kernel.orghttps://git.kernel.org/stable/c/79ea2feb917b05366b49d85573c9c5331f043b2c
access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-53281vdb-entryx_refsource_REDHAT
bugzilla.redhat.comRHBZ#2493728https://bugzilla.redhat.com/show_bug.cgi?id=2493728issue-trackingx_refsource_REDHAT
security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53281.jsonx_sadp-csaf-vex
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:47017vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:47040vendor-advisoryx_refsource_REDHAT

01 Record index

CVE-2026-53281

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-53281

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References