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CVE-2026-21157high8.3

Improper input validation in Bixby prior to version 4.0.85.6 allows privileged local attackers to launch arbitrary activity.

Impact

Bixby versions prior to 4.0.85.6 have an improper input validation weakness, allowing privileged local attackers to launch arbitrary activity. The vulnerability requires local access. The impact is launching arbitrary activity.

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.

Samsung Mobile · SamsungMobile

Bixby

1 range
SamsungMobile version evidence

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

affected

unaffected

4.0.85.6 → before *

semver versions

unknown

Other versions: affected

Original source description

Improper input validation in Bixby prior to version 4.0.85.6 allows privileged local attackers to launch arbitrary activity.

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-2026-21157

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-20 ↗

CWE-20 Improper Input Validation

CISA-ADP

Related →
Contributing organizations · 2
SamsungMobile

Assigning organization

2026-10-29
CISA-ADP

Additional data publisher

2026-10-30

What changed

Follow changes
  1. CVE · CVE-2026-21157

    Observed 2026-10-30T04:20:29.061Z · upstream updated 2026-10-30T03:55:58.739Z

    Prioritization updated

    before

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-29T12:35:20.605431Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-29T00:00:00+00:00",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

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

Showing up to 50 most recent observed changes.

References

1 sources
security.samsungmobile.com/serviceWeb.smsb
Source referenceSamsungMobile