7.4

CVE-2025-30648: Junos OS and Junos OS Evolved: Receipt of a specifically malformed DHCP packet causes jdhcpd process to crash

Analyzed
Published 09-04-2025Last modified 09-04-2025

Vulnerability summary

CVE-2025-30648 is a high (CVSS 7.4) Improper Input Validation vulnerability in juniper networks junos os. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 09-04-2025
    PublishedVulnerability first disclosed.
  2. 09-04-2025
    Last modifiedVulnerability information updated.

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. .

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.23% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Juniper2 products
  • junos< 21.2 | 21.2 | 21.2:r1 | 21.2:r1-s1 | 21.2:r1-s2 | 21.2:r2 | 21.2:r2-s1 | 21.2:r2-s2 | 21.2:r3 | 21.2:r3-s1 | 21.2:r3-s2 | 21.2:r3-s3 | 21.2:r3-s4 | 21.2:r3-s5 | 21.2:r3-s6 | 21.2:r3-s7 | 21.2:r3-s8 | 21.4 | 21.4:r1 | 21.4:r1-s1 | 21.4:r1-s2 | 21.4:r2 | 21.4:r2-s1 | 21.4:r2-s2 | 21.4:r3 | 21.4:r3-s1 | 21.4:r3-s2 | 21.4:r3-s3 | 21.4:r3-s4 | 21.4:r3-s5 | 21.4:r3-s6 | 21.4:r3-s7 | 21.4:r3-s8 | 21.4:r3-s9 | 22.2 | 22.2:r1 | 22.2:r1-s1 | 22.2:r1-s2 | 22.2:r2 | 22.2:r2-s1 | 22.2:r2-s2 | 22.2:r3 | 22.2:r3-s1 | 22.2:r3-s2 | 22.2:r3-s3 | 22.2:r3-s4 | 22.2:r3-s5 | 22.4 | 22.4:r1 | 22.4:r1-s1 | 22.4:r1-s2 | 22.4:r2 | 22.4:r2-s1 | 22.4:r2-s2 | 22.4:r3 | 22.4:r3-s1 | 22.4:r3-s2 | 22.4:r3-s3 | 22.4:r3-s4 | 22.4:r3-s5 | 23.2 | 23.2:r1 | 23.2:r1-s1 | 23.2:r1-s2 | 23.2:r2 | 23.2:r2-s1 | 23.2:r2-s2 | 23.4 | 23.4:r1 | 23.4:r1-s1 | 23.4:r1-s2 | 23.4:r2 | 23.4:r2-s1 | 23.4:r2-s2 | 23.4:r2-s3 | 24.2 | 24.2:r1 | 24.2:r1-s1 | 24.2:r1-s2
  • junos_os_evolved22.4 | 22.4:r1 | 22.4:r1-s1 | 22.4:r1-s2 | 22.4:r2 | 22.4:r2-s1 | 22.4:r2-s2 | 22.4:r3 | 22.4:r3-s1 | 22.4:r3-s2 | 22.4:r3-s3 | 22.4:r3-s4 | 22.4:r3-s5 | 23.2 | 23.2:r1 | 23.2:r1-s1 | 23.2:r1-s2 | 23.2:r2 | 23.2:r2-s1 | 23.2:r2-s2 | 23.4 | 23.4:r1 | 23.4:r1-s1 | 23.4:r1-s2 | 23.4:r2 | 23.4:r2-s1 | 23.4:r2-s2 | 23.4:r2-s3 | 24.2 | 24.2:r1 | 24.2:r1-s2
Juniper networks2 products
  • junos os< 21.2R3-S9 | ≥ 21.4, < 21.4R3-S10 | ≥ 22.2, < 22.2R3-S6 | ≥ 22.4, < 22.4R3-S6 | ≥ 23.2, < 23.2R2-S3 | ≥ 23.4, < 23.4R2-S4 | ≥ 24.2, < 24.2R2
  • junos os evolved≥ 22.4, < 22.4R3-S6-EVO | ≥ 23.2, < 23.2R2-S3-EVO | ≥ 23.4, < 23.4R2-S4-EVO | ≥ 24.2, < 24.2R2-EVO

2 vendors · 4 products

References

1 links