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Vulnerabilities

Vulnerability · CVE-2026-28540

Out-of-bounds character read vulnerability in Bluetooth.

Published Mar 5, 2026 · catalog updated Jun 17, 2026 · Out-of-bounds character read vulnerability

Check if you run it

No confirmed exploitation is on record for CVE-2026-28540. EPSS is 0.12%. Act only if a listed version of Out-of-bounds character read vulnerability is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Out-of-bounds character read vulnerability).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low3.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.12%
Remediation
Advisory link
Affected products
cpe huawei/harmonyos

Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

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 huawei/harmonyos5.1.0
  • cpe huawei/harmonyos6.0.0

How to fix CVE-2026-28540

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-2026-28540. EPSS is 0.12%. Act only if a listed version of Out-of-bounds character read vulnerability is installed.

Which versions are affected?

Compare what you have installed with 5.1.0, 6.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-125: Out-of-bounds Read; CWE-158. EPSS 0.12%. 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. Mar 5, 2026 · NIST NVD

    Detected

    Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

Sources

  • CVE.orgVulnerability recordCVE-2026-28540

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-28540

    30-day exploitation probability 0.1%

    first.org
  • NIST NVDVulnerability recordCVE-2026-28540

    Out-of-bounds character read vulnerability in Bluetooth. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

    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.