CVE-2015-3006Network attack vector

Private-key compromise via low boot-time entropy

Published Feb 28, 2020 · Updated Sep 16, 2024

Insufficient entropy in Juniper Junos on QFX3500 and QFX3600 switches allows remote authenticated users to compromise SSH or TLS private keys. At boot, the RANDOM_INTERRUPT source contributes too few bytes before Junos generates SSH host keys or self-signed TLS certificates. Exposure is limited to credentials generated immediately after boot, enabling confidentiality loss without data alteration or service interruption.

CVSS severity6.5
Medium
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient entropy in Juniper Junos on QFX3500 and QFX3600 switches allows remote authenticated users to compromise SSH or TLS private keys. At boot, the RANDOM_INTERRUPT source contributes too few bytes before Junos generates SSH host keys or self-signed TLS certificates. Exposure is limited to credentials generated immediately after boot, enabling confidentiality loss without data alteration or service interruption.

The record

CVE
CVE-2015-3006
Published
Feb 28, 2020
Updated
Sep 16, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-331
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5MITRECVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.8NIST NVDAV:N/AC:L/Au:S/C:C/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-331Insufficient Entropy

Public exploit references

No public exploit references are available in this record.

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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