Stack-based Buffer Overflow in Juniper Networks Junos OS and Evolved Platforms
CVE-2026-102052

8.7HIGH

Key Information:

Vendor

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

Badges

👾 Exploit Exists

What is CVE-2026-102052?

A stack-based buffer overflow vulnerability exists in the jdhcpd process of Juniper Networks' Junos OS and its Evolved platforms. This issue enables an adjacent unauthenticated attacker to potentially cause a denial of service or execute arbitrary code with root privileges. The vulnerability is triggered when an improperly formatted DHCPv4 server response is processed, particularly when utilizing the DHCPv4 local-client feature. Successful exploitation can lead to significant operational disruptions and unauthorized access.

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/JSA112187
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent 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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