CVE-2026-33779Junos OS: SRX Series: Insufficient certificate verification for device to SD cloud communication
Updated under an hour ago ()
Does this affect you?
It affects Juniper Networks Junos OS and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
- Weakness (CWE)
- CWE-296
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- juniper
- NVD analysis
- Analyzed
- Record last updated
- Apr 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Juniper Networks Junos OS juniper_networks:junos_os (from the name) | before 22.4R3-S9; from 23.2 before 23.2R2-S6; from 23.4 before 23.4R2-S7; from 24.2 before 24.2R2-S3; from 24.4 before 24.4R2-S2; from 25.2 before 25.2R1-S2, 25.2R2 | CNA record |
juniper junos juniper:junos | before 22.4; 22.4; 22.4; 22.4; 22.4; 22.4; 22.4; 22.4; and 47 more ranges | NVD |
References
- https://kb.juniper.net/JSA107823vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.