Junos OS (SRX firewalls)
CVE-2024-30394: A specific EVPN type-5 route causes rpd crash
A Stack-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) component of Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause an rpd crash, leading to Denial of Service (DoS).
Published
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 | 21.2R3-S7 or later |
| Junos OS 21.4 | 21.4R3-S5 or later |
| Junos OS 22.1 | 22.1R3-S4 or later |
| Junos OS 22.2 | 22.2R3-S2 or later |
| Junos OS 22.3 | 22.3R3-S1 or later |
| Junos OS 22.4 | 22.4R3 or later |
| Junos OS 23.2 | 23.2R2 or later |
| Junos OS Evolved 0 | 21.4R3-S5-EVO or later |
| Junos OS Evolved 22.1-EVO | 22.1R3-S4-EVO or later |
| Junos OS Evolved 22.2-EVO | 22.2R3-S2-EVO or later |
| Junos OS Evolved 22.3-EVO | 22.3R3-S1-EVO or later |
| Junos OS Evolved 22.4-EVO | 22.4R3-EVO or later |
| Junos OS Evolved 23.2-EVO | 23.2R2-EVO or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A Stack-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) component of Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause an rpd crash, leading to Denial of Service (DoS).
On all Junos OS and Junos OS Evolved platforms, when EVPN is configured, and a specific EVPN type-5 route is received via BGP, rpd crashes and restarts. Continuous receipt of this specific route will lead to a sustained Denial of Service (DoS) condition.
This issue affects: Junos OS:
- all versions before 21.2R3-S7,
- from 21.4 before 21.4R3-S5,
- from 22.1 before 22.1R3-S4,
- from 22.2 before 22.2R3-S2,
- from 22.3 before 22.3R3-S1,
- from 22.4 before 22.4R3,
- from 23.2 before 23.2R2.
Junos OS Evolved:
- all versions before 21.4R3-S5-EVO,
- from 22.1-EVO before 22.1R3-S4-EVO,
- from 22.2-EVO before 22.2R3-S2-EVO,
- from 22.3-EVO before 22.3R3-S1-EVO,
- from 22.4-EVO before 22.4R3-EVO,
- from 23.2-EVO before 23.2R2-EVO.
Am I affected?
For this issue to occur, EVPN needs to be enabled. [protocols evpn]
Workarounds
There are no available 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 13 Oct 2026.