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CVE-2026-119086high8.2

Missing type validation in xQueueSelectFromSet in FreeRTOS-Kernel

Impact

FreeRTOS-Kernel before V11.3.3 has a missing type validation weakness, allowing a local unprivileged task to write controlled data beyond a pointer-sized object on the kernel stack. This affects MPU-enabled ports with queue sets enabled. A local attacker is required.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

FreeRTOS · AMZN

FreeRTOS-Kernel

1 range
AMZN version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

7.4.0 → through 11.3.2

custom versions

unaffected

unknown

Other versions: unaffected

Original source description

Missing queue-set type validation in the queue-set selection system call in FreeRTOS-Kernel before V11.3.3 on MPU-enabled ports with queue sets enabled allows a local unprivileged task to write actor-controlled data beyond a pointer-sized object on the privileged kernel stack, affecting privileged memory across the MPU isolation boundary.

To remediate this issue, users should upgrade to FreeRTOS-Kernel V11.3.3, rebuild, and reflash affected firmware. Builds that do not enable queue sets are not affected.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119086

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-843 ↗

CWE-843 Access of resource using incompatible type ('type confusion')

AMZN

Related →
CWE-121 ↗

CWE-121 Stack-based buffer overflow

AMZN

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

AMZN · platform conditions

Any condition may hold

Any condition may hold

Vulnerable product

cpe:2.3:a:freertos:freertos-kernel:*:*:*:*:*:*:*:*

From (inclusive): 7.4.0

Through (inclusive): 11.3.2

Original applicability statements
[
  {
    "operator": "OR",
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:freertos:freertos-kernel:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "7.4.0",
            "versionEndIncluding": "11.3.2"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 2
AMZN

Assigning organization

2026-10-30
CISA-ADP

Additional data publisher

2026-10-30

What changed

Follow changes
  1. CVE · CVE-2026-119086

    Observed 2026-10-30T20:23:46.233Z · upstream updated 2026-10-30T20:04:33.929Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-30T20:04:17.162661Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

References

3 sources
github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.3
release-notesAMZN
aws.amazon.com/security/security-bulletins/2026-158-aws/
vendor-advisoryAMZN
github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-56j9-g43f-8g6v
third-party-advisoryAMZN