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THREATINT
PUBLISHED

CVE-2025-30648

Junos OS and Junos OS Evolved: Receipt of a specifically malformed DHCP packet causes jdhcpd process to crash



Description

An Improper Input Validation vulnerability in the Juniper DHCP Daemon (jdhcpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause the jdhcpd process to crash resulting in a Denial of Service (DoS). When a specifically malformed DHCP packet is received from a DHCP client, the jdhcpd process crashes, which will lead to the unavailability of the DHCP service and thereby resulting in a sustained DoS. The DHCP process will restart automatically to recover the service. This issue will occur when dhcp-security is enabled.  This issue affects Junos OS:  * All versions before 21.2R3-S9,  * from 21.4 before 21.4R3-S10,  * from 22.2 before 22.2R3-S6,  * from 22.4 before 22.4R3-S6,  * from 23.2 before 23.2R2-S3,  * from 23.4 before 23.4R2-S4,  * from 24.2 before 24.2R2;  Junos OS Evolved:  * from 22.4 before 22.4R3-S6-EVO,  * from 23.2 before 23.2R2-S3-EVO,  * from 23.4 before 23.4R2-S4-EVO,  * from 24.2 before 24.2R2-EVO. .

Reserved 2025-03-24 | Published 2025-04-09 | Updated 2025-04-09 | Assigner juniper


HIGH: 7.4CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

HIGH: 7.1CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/R:A

Problem types

CWE-20 Improper Input Validation

Product status

Default status
unaffected

Any version before 21.2R3-S9
affected

21.4 before 21.4R3-S10
affected

22.2 before 22.2R3-S6
affected

22.4 before 22.4R3-S6
affected

23.2 before 23.2R2-S3
affected

23.4 before 23.4R2-S4
affected

24.2 before 24.2R2
affected

Default status
unaffected

22.4 before 22.4R3-S6-EVO
affected

23.2 before 23.2R2-S3-EVO
affected

23.4 before 23.4R2-S4-EVO
affected

24.2 before 24.2R2-EVO
affected

Timeline

2025-04-09:Initial Publication

References

supportportal.juniper.net/JSA96458 vendor-advisory

cve.org (CVE-2025-30648)

nvd.nist.gov (CVE-2025-30648)

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