Riskcovery

CVE-2026-33779

Junos OS: SRX Series: Insufficient certificate verification for device to SD cloud communication

State
Published
Severity
8.3 High
Published
Apr 9, 2026
Updated
Apr 13, 2026
Reserved
Mar 23, 2026

Read the record on cve.org

Description

An Improper Following of a Certificate's Chain of Trust vulnerability in J-Web of Juniper Networks Junos OS on SRX Series allows a PITM to intercept the communication of the device and get access to confidential information and potentially modify it.

When an SRX device is provisioned to connect to Security Director (SD) cloud, it doesn't perform sufficient verification of the received server certificate. This allows a PITM to intercept the communication between the SRX and SD cloud and access credentials and other sensitive information.

This issue affects Junos OS: * all versions before 22.4R3-S9, * 23.2 versions before 23.2R2-S6, * 23.4 versions before 23.4R2-S7, * 24.2 versions before 24.2R2-S3, * 24.4 versions before 24.4R2-S2, * 25.2 versions before 25.2R1-S2, 25.2R2.

Scores

CVSSScoreVectorSource
4.08.3 HighCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/RE:Mjuniper
3.16.5 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:Njuniper

Weaknesses

  • CWE-296 Improper Following of a Certificate's Chain of Trust

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 22.4R3-S9Affected
  • 23.2 to before 23.2R2-S6Affected
  • 23.4 to before 23.4R2-S7Affected
  • 24.2 to before 24.2R2-S3Affected
  • 24.4 to before 24.4R2-S2Affected
  • 25.2 to before 25.2R1-S2, 25.2R2Affected

References

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