CVE-2015-0558Public exploit

Unauthorized wireless access via predictable WPA key

Published Jan 14, 2020 · Updated Aug 6, 2024

Weak default-key generation in ADB P.DGA4001N firmware PDG_TEF_SP_4.06L.6 allows attackers to derive the WPA key from the MAC address. The firmware hashes a fixed 32-byte seed, the literal string 1236790, and the device MAC with SHA-256, then maps the first ten digest bytes into lowercase alphanumeric characters. The default WPA key is recoverable from a supported router MAC address, enabling unauthorized access to its protected wireless network when the factory-generated key remains configured.

CVSS severity5.3
Medium
EPSS probability1.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak default-key generation in ADB P.DGA4001N firmware PDG_TEF_SP_4.06L.6 allows attackers to derive the WPA key from the MAC address. The firmware hashes a fixed 32-byte seed, the literal string 1236790, and the device MAC with SHA-256, then maps the first ten digest bytes into lowercase alphanumeric characters. The default WPA key is recoverable from a supported router MAC address, enabling unauthorized access to its protected wireless network when the factory-generated key remains configured.

The record

CVE
CVE-2015-0558
Published
Jan 14, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-311
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 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 vectoradjacent
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:N/I:P/A:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-311Missing Encryption of Sensitive Data

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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