Vulnerability in Juniper Networks Junos Os
CVE-2026-57030
A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker…
Vulnerability class: Race Condition
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Juniper Networks Junos Os — versions 24.2, 24.4, 25.2
Weakness classification (CWE)
References
- sirt@juniper.net (vendor-advisory)
Frequently asked questions
- What is CVE-2026-57030?
- CVE-2026-57030 is a medium-severity vulnerability in Juniper Networks Junos Os, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.9/10. Published 2026-07-09.
- How severe is CVE-2026-57030?
- Medium severity. CVSS v3 base score is 5.9 out of 10.