Stack-Based Buffer Overflow in Juniper Networks Junos OS DHCP Client
CVE-2026-102057

8.7HIGH

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists

What is CVE-2026-102057?

A stack-based buffer overflow vulnerability in the jdhcpd process of Juniper Networks' Junos OS has been identified, enabling unauthenticated adjacent attackers to potentially disrupt DHCP client operations. This vulnerability can lead to denial of service conditions affecting DHCP, relay, and zero-touch provisioning services. Proper mitigations should be implemented to safeguard against potential exploitation.

Affected Version(s)

Junos OS 0 < 23.2R2-S7.7

Junos OS 23.4 < 23.4R2-S8.13

Junos OS 24.2 < 24.2R2-S5.5

References

https://supportportal.juniper.net/JSA112188
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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