Stack-based Buffer Overflow in Juniper Networks Junos OS SRX Series
CVE-2026-33792

9.3CRITICAL

Key Information:

Vendor

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

Badges

👾 Exploit Exists

What is CVE-2026-33792?

A stack-based buffer overflow vulnerability exists in the srxpfe process of Juniper Networks' Junos OS on the SRX Series. This flaw can be exploited by an unauthenticated network attacker through a specially crafted packet sent over a configured GRE tunnel, which may result in unauthorized code execution with root privileges or cause a denial of service.

Affected Version(s)

Junos OS SRX Series 0 < 23.2R2-S7.7

Junos OS SRX Series 23.4 < 23.4R2-S8.13

Junos OS SRX Series 24.2 < 24.2R2-S5.5

References

https://supportportal.juniper.net/JSA112186
vendor-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
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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