CVE-2024-30387
Junos OS: ACX5448 & ACX710: Due to interface flaps the PFE process can crash
Reported by juniper · Published April 12, 2024
A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS). If an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart. This issue affects Junos OS: * All versions before 20.4R3-S9, * 21.2 versions before 21.2R3-S5, * 21.3 versions before 21.3R3-S5, * 21.4 versions before 21.4R3-S4, * 22.1 versions before 22.1R3-S2, * 22.2 versions before 22.2R3-S2, * 22.3 versions before 22.3R2-S2, 22.3R3, * 22.4 versions before 22.4R2.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| junos | juniper | 20.4 |
| Junos OS | Juniper Networks | 22.4R2, 22.4R3, 22.3R2-S2, 22.3R3, 22.2R3-S2, 22.1R3-S2, 21.4R3-S4, 21.3R3-S5, 21.2R3-S5, 20.4R3-S9 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | 0, 21.2, 21.3 |
| Juniper Networks | Junos OS | 21.2, 21.3, 22.1 |
Timeline
- Apr 10, 2024 CVE Published
- Apr 13, 2024 EPSS Score (30 in total, the first dated here)
- Oct 4, 2024 Coalition ESS Score (6 in total, the first dated here)
- Jan 13, 2026 CVE Updated
- Jun 2, 2026 Security Advisory
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