CVE-2026-45702

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Source

https://cve.org/CVERecord?id=CVE-2026-45702

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45702.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-45702

Aliases

GHSA-86pj-8xgw-66p5

Downstream

Published

2026-06-03T17:55:18Z

Modified

2026-10-21T02:58:08Z

Severity

4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

OP-TEE has FF-A type confusion in SPMC tmem path that causes S-EL1 kernel panic

Details

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 4.3.0 and prior to version 4.11.0, a type confusion vulnerability exists in OP-TEE OS when processing an FFA_MEM_SHARE request from the normal world. This only applies when OP-TEE is configured as an SPMC for S-EL0 SPs, that is, with CFG_CORE_SEL1_SPMC=y and CFG_SECURE_PARTITION=y. Version 4.11.0 fixes the issue.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-843"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45702.json"
}

References

Affected packages

Git / github.com/op-tee/optee_os

Affected ranges

Type

GIT

Repo

https://github.com/op-tee/optee_os

Events

Introduced

1c0d52ace3c237ca6276cafb5c73f699a75c1d40

Fixed

f54190f22611dd5ad5d22546fd4209aa100f56bd

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "4.3.0"
                },
                {
                    "fixed":  "4.11.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        }
    ]
}

Affected versions

4.*

4.10.0

4.10.0-rc1

4.11.0-rc1

4.3.0

4.4.0

4.4.0-rc1

4.5.0

4.5.0-rc1

4.6.0

4.6.0-rc1

4.7.0

4.7.0-rc1

4.8.0

4.8.0-rc1

4.9.0

4.9.0-rc1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45702.json"