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.
Published 2024-04-12 15:20:05
Updated 2025-02-06 20:36:42
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2024-30387

Exploit prediction scoring system (EPSS) score for CVE-2024-30387

0.10%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 30 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2024-30387

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.5
MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.8
3.6
Juniper Networks, Inc. 2024-04-12
7.1
HIGH CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/V...
N/A
N/A
Juniper Networks, Inc. 2025-02-06

CWE ids for CVE-2024-30387

  • The product utilizes multiple threads or processes to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes.
    Assigned by: nvd@nist.gov (Primary)
  • The product utilizes a shared resource in a concurrent manner but does not attempt to synchronize access to the resource.
    Assigned by: sirt@juniper.net (Secondary)
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