CVE-2016-15006Network attack vector

Encrypted-data disclosure via password-derived scrambling tables

Published Jan 2, 2023 · Updated Aug 6, 2024

Predictable PRNG seeding in enigmaX 2.2 and earlier allows remote attackers to infer scrambling sequences and expose encrypted data. In keyfile mode, main.c derives scrambling-table selection from password-based PRNG output and reuses identical tables instead of binding their order to the keyfile. Successful exploitation requires possession of the password but not the keyfile, plus difficult frequency analysis of ciphertext produced in keyfile mode.

CVSS severity5.3
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Predictable PRNG seeding in enigmaX 2.2 and earlier allows remote attackers to infer scrambling sequences and expose encrypted data. In keyfile mode, main.c derives scrambling-table selection from password-based PRNG output and reuses identical tables instead of binding their order to the keyfile. Successful exploitation requires possession of the password but not the keyfile, plus difficult frequency analysis of ciphertext produced in keyfile mode.

The record

CVE
CVE-2016-15006
Published
Jan 2, 2023
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-337
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 2, 2023CVE 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

2.6VulDBAV:N/AC:H/Au:N/C:P/I:N/A:N
3.7VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-337Predictable Seed in Pseudo-Random Number Generator (PRNG)

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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