CVE-2026-102037 Juniper Networks Junos OS - XML External Entity Injection

Juniper Networks Junos OS on SRX Series devices contains an XML injection caused by processing malicious responses from a configured custom URL-feed server in the Unified Threat Management daemon (utmd), letting unauthenticated network attackers commit arbitrary device configuration with root privileges.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
XML External Entity Injection
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-91

Vendor fix

Update to the latest Junos OS version with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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