CVE-2020-8988

Credential and voting-history disclosure via PIN brute force

Published Feb 13, 2020 · Updated Aug 4, 2024

Weak PIN protection in Voatz for Android 2020-01-01 allows attackers to recover login credentials and voting history offline. The app derives its Realm database key by applying PBKDF2-SHA1 to an eight-digit numeric PIN and imposes no retry limit on copied databases. Root access is required to export the database; offline key trials can then expose the PIN, login data, and stored vote history.

CVSS severity5.9
Medium
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak PIN protection in Voatz for Android 2020-01-01 allows attackers to recover login credentials and voting history offline. The app derives its Realm database key by applying PBKDF2-SHA1 to an eight-digit numeric PIN and imposes no retry limit on copied databases. Root access is required to export the database; offline key trials can then expose the PIN, login data, and stored vote history.

The record

CVE
CVE-2020-8988
Published
Feb 13, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-330, CWE-521, T1110.002
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 13, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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 privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:P/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values
CWE-521Weak Password Requirements
T1110.002Password Cracking

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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