Under a rare timing scenario outside the attacker's control, memory corruption may be observed when DHCP Option 82 is enabled, leading to an FPC crash and affecting packet forwarding. Due to the nature of the heap-based overflow, exploitation of this vulnerability could also lead to remote code execution within the FPC, resulting in complete control of the vulnerable component.
This issue affects Junos OS on EX2300, EX3400, EX4100, EX4300, EX4300MP, EX4400, EX4600, EX4650-48Y, and QFX5k Series:
* All versions before 21.4R3-S9,
* from 22.2 before 22.2R3-S5,
* from 22.4 before 22.4R3-S5,
* from 23.2 before 23.2R2-S3,
* from 23.4 before 23.4R2-S3,
* from 24.2 before 24.2R2.
Project Subscriptions
| Vendors | Products |
|---|---|
|
Juniper
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Ex2300
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Ex3400
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Ex4100
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Ex4300
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Ex4300mp
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Ex4400
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Ex4600
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Ex4650-48y
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Junos
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Qfx5110
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Qfx5120
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Qfx5130
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Qfx5200
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Qfx5210
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Qfx5220
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Qfx5230-64cd
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Qfx5240
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Qfx5241
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Qfx5700
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|
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-10519 | A Heap-based Buffer Overflow vulnerability in the flexible PIC concentrator (FPC) of Juniper Networks Junos OS on EX2300, EX3400, EX4100, EX4300, EX4300MP, EX4400, EX4600, EX4650-48Y, and QFX5k Series allows an attacker to send a specific DHCP packet to the device, leading to an FPC crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. Under a rare timing scenario outside the attacker's control, memory corruption may be observed when DHCP Option 82 is enabled, leading to an FPC crash and affecting packet forwarding. Due to the nature of the heap-based overflow, exploitation of this vulnerability could also lead to remote code execution within the FPC, resulting in complete control of the vulnerable component. This issue affects Junos OS on EX2300, EX3400, EX4100, EX4300, EX4300MP, EX4400, EX4600, EX4650-48Y, and QFX5k Series: * All versions before 21.4R3-S9, * from 22.2 before 22.2R3-S5, * from 22.4 before 22.4R3-S5, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S3, * from 24.2 before 24.2R2. |
Solution
The following software releases have been updated to resolve this specific issue: 21.4R3-S9, 22.2R3-S5, 22.4R3-S5, 23.2R2-S3, 23.4R2-S3, 24.2R2, 24.4R1, and all subsequent releases.
Workaround
Disable dhcp-option82 if it is not required.
| Link | Providers |
|---|---|
| https://supportportal.juniper.net/JSA96453 |
|
Mon, 26 Jan 2026 19:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Juniper
Juniper ex2300 Juniper ex3400 Juniper ex4100 Juniper ex4300 Juniper ex4300mp Juniper ex4400 Juniper ex4600 Juniper ex4650-48y Juniper junos Juniper qfx5110 Juniper qfx5120 Juniper qfx5130 Juniper qfx5200 Juniper qfx5210 Juniper qfx5220 Juniper qfx5230-64cd Juniper qfx5240 Juniper qfx5241 Juniper qfx5700 |
|
| CPEs | cpe:2.3:h:juniper:ex2300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex3400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4300mp:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4400:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4600:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4650-48y:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5110:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5120:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5130:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5210:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5220:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5230-64cd:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5240:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5241:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5700:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s5:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s6:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s7:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3-s8:*:*:*:*:*:* cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r3-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r3-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r3-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r3-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r3-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:23.4:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r1-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos:24.2:r1:*:*:*:*:*:* |
|
| Vendors & Products |
Juniper
Juniper ex2300 Juniper ex3400 Juniper ex4100 Juniper ex4300 Juniper ex4300mp Juniper ex4400 Juniper ex4600 Juniper ex4650-48y Juniper junos Juniper qfx5110 Juniper qfx5120 Juniper qfx5130 Juniper qfx5200 Juniper qfx5210 Juniper qfx5220 Juniper qfx5230-64cd Juniper qfx5240 Juniper qfx5241 Juniper qfx5700 |
Wed, 07 May 2025 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 09 Apr 2025 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A Heap-based Buffer Overflow vulnerability in the flexible PIC concentrator (FPC) of Juniper Networks Junos OS on EX2300, EX3400, EX4100, EX4300, EX4300MP, EX4400, EX4600, EX4650-48Y, and QFX5k Series allows an attacker to send a specific DHCP packet to the device, leading to an FPC crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. Under a rare timing scenario outside the attacker's control, memory corruption may be observed when DHCP Option 82 is enabled, leading to an FPC crash and affecting packet forwarding. Due to the nature of the heap-based overflow, exploitation of this vulnerability could also lead to remote code execution within the FPC, resulting in complete control of the vulnerable component. This issue affects Junos OS on EX2300, EX3400, EX4100, EX4300, EX4300MP, EX4400, EX4600, EX4650-48Y, and QFX5k Series: * All versions before 21.4R3-S9, * from 22.2 before 22.2R3-S5, * from 22.4 before 22.4R3-S5, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S3, * from 24.2 before 24.2R2. | |
| Title | Junos OS: EX2300, EX3400, EX4000 Series, QFX5k Series: Receipt of a specific DHCP packet causes FPC crash when DHCP Option 82 is enabled | |
| Weaknesses | CWE-122 | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2025-05-07T18:55:01.374Z
Reserved: 2025-03-24T19:34:11.320Z
Link: CVE-2025-30644
Updated: 2025-05-02T15:35:44.054Z
Status : Analyzed
Published: 2025-04-09T20:15:27.517
Modified: 2026-01-26T19:33:45.423
Link: CVE-2025-30644
No data.
OpenCVE Enrichment
No data.
EUVD