An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices.
Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices.
This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled.
The following commands can be used to monitor the DDoS protection queue:
labuser@re0> show evo-pfemand host pkt-stats
labuser@re0> show host-path ddos all-policers
This issue affects Junos OS Evolved:
* All versions before 21.4R3-S8-EVO,
* from 22.2 before 22.2R3-S4-EVO,
* from 22.3 before 22.3R3-S4-EVO,
* from 22.4 before 22.4R3-S3-EVO,
* from 23.2 before 23.2R2-EVO,
* from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO,
* from 24.2 before 24.2R2-EVO.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/ | Permissions Required |
Configurations
Configuration 1 (hide)
| AND |
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History
26 Jan 2026, 18:19
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://supportportal.juniper.net/ - Permissions Required | |
| CPE | cpe:2.3:o:juniper:junos_os_evolved:22.3:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s2:*:*:*:*:*:* cpe:2.3:h:juniper:acx5448-m:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx7024x:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s1:*:*:*:*:*:* cpe:2.3:h:juniper:acx5448:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx710:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:24.2:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r1:*:*:*:*:*:* cpe:2.3:h:juniper:acx7509:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r3:*:*:*:*:*:* cpe:2.3:h:juniper:acx7100:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:24.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s2:*:*:*:*:*:* cpe:2.3:h:juniper:acx7300:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:* cpe:2.3:h:juniper:acx7024:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s7:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s5:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:24.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.4:r1:*:*:*:*:*:* cpe:2.3:h:juniper:acx7020:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.4:r2:*:*:*:*:*:* cpe:2.3:h:juniper:acx5448-d:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s6:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.3:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.2:-:*:*:*:*:*:* |
|
| First Time |
Juniper acx7300
Juniper acx5448-m Juniper Juniper acx5448 Juniper junos Os Evolved Juniper acx7024 Juniper acx7100 Juniper acx7509 Juniper acx7020 Juniper acx7024x Juniper acx5448-d Juniper acx710 |
21 Nov 2024, 09:39
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices. Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices. This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled. The following commands can be used to monitor the DDoS protection queue: labuser@re0> show evo-pfemand host pkt-stats labuser@re0> show host-path ddos all-policers This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * from 22.2 before 22.2R3-S4-EVO, * from 22.3 before 22.3R3-S4-EVO, * from 22.4 before 22.4R3-S3-EVO, * from 23.2 before 23.2R2-EVO, * from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO, * from 24.2 before 24.2R2-EVO. |
15 Oct 2024, 12:58
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
|
|
| Summary | (en) An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices. Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices. This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled. The following commands can be used to monitor the DDoS protection queue: labuser@re0> show evo-pfemand host pkt-stats ?? labuser@re0> show host-path ddos all-policers This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * from 22.2 before 22.2R3-S4-EVO, * from 22.3 before 22.3R3-S4-EVO, * from 22.4 before 22.4R3-S3-EVO, * from 23.2 before 23.2R2-EVO, * from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO, * from 24.2 before 24.2R2-EVO. |
11 Oct 2024, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-10-11 16:15
Updated : 2026-01-26 18:19
NVD link : CVE-2024-47489
Mitre link : CVE-2024-47489
CVE.ORG link : CVE-2024-47489
JSON object : View
Products Affected
juniper
- acx7509
- acx7024
- acx5448
- acx7100
- acx5448-d
- acx5448-m
- acx7020
- acx710
- junos_os_evolved
- acx7024x
- acx7300
CWE
CWE-755
Improper Handling of Exceptional Conditions
