CVE-2012-6663Public exploitNetwork attack vector

Credential disclosure via unauthenticated configuration download

Published Jan 23, 2020 · Updated Aug 6, 2024

Credential exposure in General Electric D20ME devices allows remote attackers to read plaintext account passwords over TFTP. The device permits unauthenticated download of NVRAM\D20.zlb, whose configuration records store usernames, passwords, and authorization levels in plaintext. Network access to UDP port 69 is sufficient; recovered credentials permit authenticated device control, including ladder-logic changes.

CVSS severity7.5
High
EPSS probability9.49%
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 General Electric D20ME devices allows remote attackers to read plaintext account passwords over TFTP. The device permits unauthenticated download of NVRAM\D20.zlb, whose configuration records store usernames, passwords, and authorization levels in plaintext. Network access to UDP port 69 is sufficient; recovered credentials permit authenticated device control, including ladder-logic changes.

The record

CVE
CVE-2012-6663
Published
Jan 23, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-522, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1552.001Unsecured Credentials: Credentials In Files

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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