Cyber Resilience

CVE-2024-39537

Medium

Published: 11 July 2024

Published
11 July 2024
Modified
22 January 2026
KEV Added
Patch
CVSS Score v4 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0026 49.4th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-39537 is a medium-severity Improper Restriction of Communication Channel to Intended Endpoints (CWE-923) vulnerability in Juniper Junos Os Evolved. Its CVSS base score is 6.9 (Medium).

Operationally, ranked at the 49.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in Juniper Networks Junos OS Evolved on ACX 7000 Series allows an unauthenticated, network-based attacker to cause a limited information disclosure and availability impact to the device. Due to a…

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wrong initialization, specific processes which should only be able to communicate internally within the device can be reached over the network via open ports. This issue affects Junos OS Evolved on ACX 7000 Series: * All versions before 21.4R3-S7-EVO, * 22.2-EVO versions before 22.2R3-S4-EVO, * 22.3-EVO versions before 22.3R3-S3-EVO, * 22.4-EVO versions before 22.4R3-S2-EVO, * 23.2-EVO versions before 23.2R2-EVO, * 23.4-EVO versions before 23.4R1-S1-EVO, 23.4R2-EVO.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

juniper
junos os evolved
21.4, 22.2, 22.3, 22.4, 23.2 · ≤ 21.4

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-923

Authorizing wireless access restricts the wireless communication channel to only intended endpoints.

addresses: CWE-923

Approving specific exchanges and documenting interface characteristics restricts communication channels to only intended endpoints and systems.

addresses: CWE-923

Limits physical connectivity to transmission channels, supporting restriction of communication paths to only intended endpoints.

addresses: CWE-923

Requiring providers to meet communication-channel restrictions and monitoring adherence reduces improper restriction of channels to intended endpoints.

addresses: CWE-923

Mandates restriction of the channel for authentication to only the intended trusted endpoints, blocking unauthorized communication paths.

addresses: CWE-923

Explicit control of VoIP traffic forces organizations to restrict communication channels to only intended endpoints and protocols.

addresses: CWE-923

Explicit internal/external separation restricts name-resolution channels to their intended communication endpoints.

addresses: CWE-923

Enforces that the wireless communication channel is usable only by intended endpoints, addressing improper channel restriction.

References