CVE-2021-39373Public exploit

Administrator access via plaintext password exposure

Published Sep 1, 2021 · Updated Aug 4, 2024

Credential exposure in Samsung Drive Manager 2.0.104 allows local users to recover disk passwords and access protected H3 storage. The authentication path stores the registered password in plaintext, and WideCharToMultiByte leaves its address accessible through MultiByteStr during comparison. Local access is sufficient to recover the password; administrative privileges are required to add or delete disks.

CVSS severity8.4
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Samsung Drive Manager 2.0.104 allows local users to recover disk passwords and access protected H3 storage. The authentication path stores the registered password in plaintext, and WideCharToMultiByte leaves its address accessible through MultiByteStr during comparison. Local access is sufficient to recover the password; administrative privileges are required to add or delete disks.

The record

CVE
CVE-2021-39373
Published
Sep 1, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-311, CWE-522, CWE-262, CWE-259, T1555
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 1, 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 vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
8.4GitHub Security AdvisoryCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitPublished

Weakness, pattern, technique

CWE-311Missing Encryption of Sensitive Data
CWE-522Insufficiently Protected Credentials
CWE-262Not Using Password Aging
CWE-259Use of Hard-coded Password
T1555Credentials from Password Stores

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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