CVE-2025-7214Public exploit

Root password recovery via MD5-crypt hash

Published Jul 9, 2025 · Updated Jul 9, 2025

Weak password hashing in FNKvision FNK-GU2 40.1.0 through 40.1.7 allows physically proximate attackers to crack the root password offline. The device stores the root account password hash in /etc/shadow with the $1$ prefix, selecting the obsolete MD5-crypt scheme. Physical disassembly and privileged filesystem access are required to retrieve the hash; the weakness exposes the root credential to offline cracking.

CVSS severity1.6
Low
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password hashing in FNKvision FNK-GU2 40.1.0 through 40.1.7 allows physically proximate attackers to crack the root password offline. The device stores the root account password hash in /etc/shadow with the $1$ prefix, selecting the obsolete MD5-crypt scheme. Physical disassembly and privileged filesystem access are required to retrieve the hash; the weakness exposes the root credential to offline cracking.

The record

CVE
CVE-2025-7214
Published
Jul 9, 2025
Updated
Jul 9, 2025
Vendor
FNKvision
Product
FNK-GU2
Classifications
CWE-310, CWE-327, T1110.002
Attack vector
physical
Privileges
admin

Timeline

How it unfolded

  1. Jul 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=40.1.0
  2. Affected versionversion=40.1.1
  3. Affected versionversion=40.1.2
  4. Affected versionversion=40.1.3
  5. Affected versionversion=40.1.4
  6. Affected versionversion=40.1.5
  7. Affected versionversion=40.1.6
  8. Affected versionversion=40.1.7

What conditions does exploitation require?

Attack vectorphysical
Required privilegesadmin

What is affected?

FNKvision · FNK-GU2version=40.1.0; version=40.1.1; version=40.1.2; version=40.1.3; version=40.1.4; version=40.1.5; version=40.1.6; version=40.1.7

Published CVSS scores

0.8VulDBAV:L/AC:H/Au:M/C:P/I:N/A:N
0.3VulDBCVSS:4.0/AV:P/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
1.6VulDBCVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:L/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-310Cryptographic Issues
CWE-327Use of a Broken or Risky Cryptographic Algorithm
T1110.002Password Cracking

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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