CVE-2026-36182Public exploit

Root password recovery via MD5 password hashes

Published Jun 4, 2026 · Updated Jun 4, 2026

Weak password hashing in GNCC GP5 7.1.76 allows attackers to recover root credentials via offline password cracking. The firmware stores the system password with the legacy MD5 crypt $1$ scheme, enabling efficient offline cracking of an extracted hash. Exploitation requires prior root-level access to extract the shadow file, so the flaw weakens credential protection rather than independently granting initial access.

CVSS severity9.8
Critical
EPSS probability0.19%
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 GNCC GP5 7.1.76 allows attackers to recover root credentials via offline password cracking. The firmware stores the system password with the legacy MD5 crypt $1$ scheme, enabling efficient offline cracking of an extracted hash. Exploitation requires prior root-level access to extract the shadow file, so the flaw weakens credential protection rather than independently granting initial access.

The record

CVE
CVE-2026-36182
Published
Jun 4, 2026
Updated
Jun 4, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-328, T1110.002
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 2026Record 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

9.8CISA-ADPCVSS:3.1/AV:N/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-328Use of Weak Hash
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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