CVE-2024-39534

mediumpriority · track · 0EPSS 0.007 · 51 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.66% (51st) EPSS

CVSS 5.4 · medium

Is it mine?

23 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

An Incorrect Comparison vulnerability in the local address verification API of Juniper Networks Junos OS Evolved allows an unauthenticated network-adjacent attacker to create sessions or send traffic to the device using the network and broadcast address of the subnet assigned to an interface. This is unintended and unexpected behavior and can allow an attacker to bypass certain compensating controls, such as stateless firewall filters. This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * 22.2-EVO before 22.2R3-S4-EVO, * 22.3-EVO before 22.3R3-S4-EVO, * 22.4-EVO before 22.4R3-S3-EVO, * 23.2-EVO before 23.2R2-S1-EVO, * 23.4-EVO before 23.4R1-S2-EVO, 23.4R2-EVO.

cvss

Technical severity, 0–10. One row per scoring source.

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5.4

v3.15.4mediumAV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.15.4mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Nsecondary · sirt@juniper.net USexploitability 2.8 · impact 2.5

v4.05.3mediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.05.3mediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/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:Xsecondary · sirt@juniper.net US

v4.01.3lowCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USCWE-266USCWE-284USCWE-697US

affected products (23)

Products and version ranges known to be affected.

Juniper JUNOSall versionscert_bundDEcpe:/o:juniper:junos:-
Juniper Junos Space <24.1R2all versionscert_bundDE
Juniper Junos Space< 24.1R2cert_bundDE
Juniper Networks Junos OS Evolved0 → 21.4R3-S8-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved22.2-EVO → 22.2R3-S4-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved22.3-EVO → 22.3R3-S4-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved22.4-EVO → 22.4R3-S3-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved23.2-EVO → 23.2R2-S1-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved23.4-EVO → 23.4R1-S2-EVO, 23.4R2-EVOenisa_euvdEU
Juniper Networks Inc. Junos OS Evolved≤ 21.2R3-S8-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved22.2-EVO → 22.2R3-S4-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved22.3-EVO → 22.3R3-S4-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved22.4-EVO → 22.4R3-S3-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved23.2-EVO → 23.2R2-S1-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved23.4-EVO → 23.4R2-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved23.4-EVO → 23.4R1-S2-EVOfstec_bduRU
juniper junos os evolved< 21.4nvdUScpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
juniper junos os evolved= 21.4nvdUScpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
juniper junos os evolved= 22.2nvdUScpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
juniper junos os evolved= 22.3nvdUScpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*

showing 20 of 23

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-3140Juniper JUNOS: Mehrere SchwachstellenDeutsch2024-10-09csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS ausnutzen, um Denial-of-Service-Zustände herbeizuführen, Informationen preiszugeben, Code auszuführen, Privilegien zu erweitern und Sicherheitsmechanismen zu umgehen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2024-10-11modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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