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Vulnerabilities

Vulnerability · CVE-2026-21021

Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.

Published May 13, 2026 · catalog updated Jun 17, 2026 · Improper input validation in

Check if you run it

No confirmed exploitation is on record for CVE-2026-21021. EPSS is 0.21%. Act only if a listed version of Improper input validation in is installed.

Severity
Medium5.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Advisory link
Affected products
cpe samsung/android

Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe samsung/android16.0

How to fix CVE-2026-21021

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-21021. EPSS is 0.21%. Act only if a listed version of Improper input validation in is installed.

Which versions are affected?

Compare what you have installed with 16.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 13, 2026 · NIST NVD

    Detected

    Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.

Sources

  • CVE.orgVulnerability recordCVE-2026-21021

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-21021

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-21021

    Improper input validation in Routines prior to SMR May-2026 Release 1 allows physical attackers to launch privileged activity.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.