CVE-2021-26278

Device information disclosure via improperly protected Wi-Fi interface

Published Dec 17, 2024 · Updated Dec 17, 2024

Information disclosure in vivo Wifi before Android 10 allows local users to read sensitive device data through an exposed interface. Vivo identifies improper permission control on that interface but does not disclose the interface name, the exposed fields, or the faulty authorization operation. Exploitation requires local access and user interaction; the published impact is limited to confidentiality, with no integrity or availability effect.

CVSS severity6.3
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in vivo Wifi before Android 10 allows local users to read sensitive device data through an exposed interface. Vivo identifies improper permission control on that interface but does not disclose the interface name, the exposed fields, or the faulty authorization operation. Exploitation requires local access and user interaction; the published impact is limited to confidentiality, with no integrity or availability effect.

The record

CVE
CVE-2021-26278
Published
Dec 17, 2024
Updated
Dec 17, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.3Vivo Mobile Communication Co., Ltd.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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