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Vulnerability details: VCID-h1ru-jhwc-1fbu
Vulnerability ID VCID-h1ru-jhwc-1fbu
Aliases CVE-2026-23327
Summary kernel: cxl/mbox: validate payload size before accessing contents in cxl_payload_from_user_allowed()
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-1284 Improper Validation of Specified Quantity in Input
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23327.json
epss 0.00017 https://api.first.org/data/v1/epss?cve=CVE-2026-23327
epss 0.00017 https://api.first.org/data/v1/epss?cve=CVE-2026-23327
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23327.json
https://api.first.org/data/v1/epss?cve=CVE-2026-23327
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2451279 https://bugzilla.redhat.com/show_bug.cgi?id=2451279
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23327.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.04647
EPSS Score 0.00017
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:32:13.874219+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23327.json 38.6.0