Junos OS (SRX firewalls)
CVE-2026-102062: SRX Series: An compromised HTTPS feed server can cause remote code execution when Security Intelligence is used
An Use of Externally-Controlled Format String vulnerability in the ipfd daemon of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker to execute code with root privileges via a compromised or impersonated configured HTTPS feed server.
Published Juniper Networks advisory JSA112186
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Junos OS 0 | 23.2R2-S7.7 or later |
| Junos OS 23.4 | 23.4R2-S8.13 or later |
| Junos OS 24.2 | 24.2R2-S5.5 or later |
| Junos OS 24.4 | 24.4R2-S5 or later |
| Junos OS 25.2 | 25.2R2-S2 or later |
| Junos OS 25.4 | 25.4R1-S3 or later |
| Junos OS 26.2 | 26.2R1-S2 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
In short
The ipfd daemon in Junos OS on SRX Series firewalls contains a format string vulnerability that processes externally controlled input. An unauthenticated attacker can exploit this flaw by compromising or impersonating a configured HTTPS feed server to send malicious data over the network. This allows the attacker to execute arbitrary code with root privileges, requiring no user interaction or prior login.
Written by a language model from the vendor's description. Versions, fixes and exploitation status on this page come straight from the vendor and CISA.
The vendor's description
An Use of Externally-Controlled Format String vulnerability in the ipfd daemon of Juniper Networks Junos OS on SRX Series allows an unauthenticated network-based attacker to execute code with root privileges via a compromised or impersonated configured HTTPS feed server.
Am I affected?
[ services security-intelligence url <URL> ]
Workarounds
There are no known workarounds for this issue.
Exploitation
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 19 Oct 2026.