CVE-2020-0044

Local information disclosure via unchecked nonce length

Published Mar 10, 2020 · Updated Aug 4, 2024

Out-of-bounds read in Fingerprint Cards AB FPC Fingerprint TEE for the Android kernel allows local users with System privileges to disclose memory. The set_nonce function in fpc_ta_qc_auth.c accepts a nonce without checking its length before reading beyond the intended buffer. Exploitation requires local System execution privileges and no user interaction; the documented consequence is memory disclosure only.

CVSS severity4.4
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Fingerprint Cards AB FPC Fingerprint TEE for the Android kernel allows local users with System privileges to disclose memory. The set_nonce function in fpc_ta_qc_auth.c accepts a nonce without checking its length before reading beyond the intended buffer. Exploitation requires local System execution privileges and no user interaction; the documented consequence is memory disclosure only.

The record

CVE
CVE-2020-0044
Published
Mar 10, 2020
Updated
Aug 4, 2024
Vendor
Fingerprint Cards AB
Product
FPC Fingerprint TEE
Classifications
CWE-125
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 10, 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?

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  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Fingerprint Cards AB · FPC Fingerprint TEEversion=Android kernel

Published CVSS scores

4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
2.1NIST NVDAV:L/AC:L/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-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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