Vulnerability in Juniper Acx7020
CVE-2024-47490
An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX 7000 Series allows an unauthenticated, network based attacker to cause increased consumption of resources, ultimately resulting in a Denial of Service (DoS). When specific transit MPLS packets are received by the PFE, these packets are internally forwarded to the Routing Engine (RE), rather than being handled appropriately. Continuous receipt of these MPLS packets causes resources to be exhausted. MPLS config is not required to be affected by this issue. This issue affects Junos OS Evolved ACX 7000 Series: * All versions before 21.4R3-S9-EVO, * 22.2-EVO before 22.2R3-S4-EVO, * 22.3-EVO before 22.3R3-S3-EVO, * 22.4-EVO before 22.4R3-S2-EVO, * 23.2-EVO before 23.2R2-EVO, * 23.4-EVO before 23.4R1-S1-EVO, 23.4R2-EVO.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Juniper Acx7020
- Juniper Acx7024
- Juniper Acx7024x
- Juniper Acx7100
- Juniper Acx7300
- Juniper Acx7509
- Juniper Junos OS Evolved — versions 21.4, 22.2, 22.3
- Juniper Networks Junos OS Evolved — versions 0, 22.2-EVO, 22.3-EVO
Weakness classification (CWE)
References
- supportportal.juniper.net/JSA83009 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-47490?
- CVE-2024-47490 is a high-severity vulnerability in Juniper Acx7020, classified under CWE-923. CVSS score: 8.2/10. Published 2024-10-11.
- How severe is CVE-2024-47490?
- High severity. CVSS v3 base score is 8.2 out of 10.