CVE-2025-30651
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A Buffer Access with Incorrect Length Value vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When an attacker sends a specific ICMPv6 packet to an interface with "protocols router-advertisement" configured, rpd crashes and restarts. Continued receipt of this packet will cause a sustained DoS condition.
This issue only affects systems configured with IPv6.
This issue affects Junos OS:
- All versions before 21.2R3-S9,
- from 21.4 before 21.4R3-S10,
- from 22.2 before 22.2R3-S6,
- from 22.4 before 22.4R3-S4,
- from 23.2 before 23.2R2-S2,
- from 23.4 before 23.4R2;
and Junos OS Evolved:
- All versions before 21.2R3-S9-EVO,
- from 21.4-EVO before 21.4R3-S10-EVO,
- from 22.2-EVO before 22.2R3-S6-EVO,
- from 22.4-EVO before 22.4R3-S4-EVO,
- from 23.2-EVO before 23.2R2-S2-EVO,
- from 23.4-EVO before 23.4R2-EVO.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Juniper Networks | Junos OS | 0 < 21.2R3-S9 | affected |
| Juniper Networks | Junos OS | 21.4 < 21.4R3-S10 | affected |
| Juniper Networks | Junos OS | 22.2 < 22.2R3-S6 | affected |
| Juniper Networks | Junos OS | 22.4 < 22.4R3-S4 | affected |
| Juniper Networks | Junos OS | 23.2 < 23.2R2-S2 | affected |
| Juniper Networks | Junos OS | 23.4 < 23.4R2 | affected |
| Juniper Networks | Junos OS Evolved | 0 < 21.2R3-S9-EVO | affected |
| Juniper Networks | Junos OS Evolved | 21.4-EVO < 21.4R3-S10-EVO | affected |
| Juniper Networks | Junos OS Evolved | 22.2-EVO < 22.2R3-S6-EVO | affected |
| Juniper Networks | Junos OS Evolved | 22.4-EVO < 22.4R3-S4-EVO | affected |
| Juniper Networks | Junos OS Evolved | 23.2-EVO < 23.2R2-S2-EVO | affected |
| Juniper Networks | Junos OS Evolved | 23.4-EVO < 23.4R2-EVO | affected |
Weaknesses
- CWE-805: CWE-805 Buffer Access with Incorrect Length Value
Workarounds
There are no known workarounds for this issue.
A firewall filter can be implemented to restrict ICMPv6 traffic.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
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