CVE-2020-23058Public exploit

Protected-file disclosure via delayed PIN enforcement

Published Oct 22, 2021 · Updated Aug 4, 2024

Authentication bypass in Nong Ge File Explorer 1.4 allows physically proximate attackers to read PIN-protected files on iOS devices. The app renders its main file-list view before presenting the configured PIN form, leaving protected files reachable before authentication is enforced. Physical device access and a configured local PIN are required; the demonstrated sequence exposes file names, sizes, previews, and contents without reported write access.

CVSS severity4.6
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Nong Ge File Explorer 1.4 allows physically proximate attackers to read PIN-protected files on iOS devices. The app renders its main file-list view before presenting the configured PIN form, leaving protected files reachable before authentication is enforced. Physical device access and a configured local PIN are required; the demonstrated sequence exposes file names, sizes, previews, and contents without reported write access.

The record

CVE
CVE-2020-23058
Published
Oct 22, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1533
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 22, 2021CVE 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 vectorphysical
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.6NIST NVDCVSS:3.1/AV:P/AC:L/PR:N/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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
T1533Data from Local System

Public exploit references

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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