CVE-2026-33771Network attack vector

Device takeover via unsaved password requirements

Published Apr 9, 2026 · Updated Apr 9, 2026

Weak password enforcement in Juniper Networks CTP OS 9.2R1 through 9.2R2 allows remote attackers to gain access via password guessing. The password management menu accepts administrator-defined complexity requirements but fails to save them, leaving local-account passwords weaker than intended. Exploitation requires guessing a resulting weak account password; successful authentication grants that account's privileges and can expose full device control.

CVSS severity9.1
Critical
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak password enforcement in Juniper Networks CTP OS 9.2R1 through 9.2R2 allows remote attackers to gain access via password guessing. The password management menu accepts administrator-defined complexity requirements but fails to save them, leaving local-account passwords weaker than intended. Exploitation requires guessing a resulting weak account password; successful authentication grants that account's privileges and can expose full device control.

The record

CVE
CVE-2026-33771
Published
Apr 9, 2026
Updated
Apr 9, 2026
Vendor
Juniper Networks
Product
CTP Operating System
Classifications
CWE-521, T1110.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.2R1 <=9.2R2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Juniper Networks · CTP Operating Systemversion=9.2R1 <=9.2R2

Published CVSS scores

9.1Juniper Networks, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
8.1NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.4Juniper Networks, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-521Weak Password Requirements
T1110.001Password Guessing

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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