CVE-2024-39534
Junos OS Evolved: Connections to the network and broadcast address accepted
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Junos OS Evolved: Connections to the network and broadcast address accepted
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.
- Record
CVE-2024-39534- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-697
- Updated
- 2026-11-02
EUVDEUVD-2024-38060
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.
- Record
EUVD-2024-38060- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mjfx-92v4-6mf3
An Incorrect Comparison vulnerability in the local address verification API of Juniper Networks...
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.
- Record
GHSA-mjfx-92v4-6mf3- CVSS 4.0
- 5.3 Medium
CVSS: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:X - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-697
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2024-39534- CVSS 4.0
- 5.3 Medium
CVSS: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:X - CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-697
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-39534 is a medium vulnerability (CVSS 5.3) in Juniper Junos Os Evolved, published October 11, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.66%, the 51st percentile. No source names a fixed version.