CVE-2026-33796NVD

Vulnerability Summary

A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured external BGP neighbor to execute arbitrary commands with root privileges via BMP route monitoring.

Severity Level

CRITICAL(9.3)

Published Date

Oct 14, 2026

Last Modified

Oct 15, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

Data Pending

Root Weakness (CWE)

CWE-121: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 9.3 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredNone

User InteractionNone

Confidentiality (Vulnerable System)High

Integrity (Vulnerable System)High

Availability (Vulnerable System)High

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)Low

CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Juniper Networks Junos OS < 23.2R2-S7.7
Juniper Networks Junos OS >= 23.4 and < 23.4R2-S8.13
Juniper Networks Junos OS >= 24.2 and < 24.2R2-S5.5
Juniper Networks Junos OS >= 24.4 and < 24.4R2-S5
Juniper Networks Junos OS >= 25.2 and < 25.2R2-S2
Juniper Networks Junos OS >= 25.4 and < 25.4R1-S3
Juniper Networks Junos OS >= 26.2 and < 26.2R1-S2
Juniper Networks Junos OS Evolved < 23.2R2-S7.7-EVO
Juniper Networks Junos OS Evolved >= 23.4 and < 23.4R2-S8.11-EVO
Juniper Networks Junos OS Evolved >= 24.2 and < 24.2R2-S5.6-EVO
Juniper Networks Junos OS Evolved >= 24.4 and < 24.4R2-S5-EVO
Juniper Networks Junos OS Evolved >= 25.2 and < 25.2R2-S2-EVO
Juniper Networks Junos OS Evolved >= 25.4 and < 25.4R1-S3-EVO
Juniper Networks Junos OS Evolved >= 26.2 and < 26.2R1-S2-EVO
Juniper Networks Junos OS Evolved >= 23.4X100
Juniper Networks Junos OS Evolved >= 25.2X100 and < 25.2X100-D35-EVO
Juniper Networks Junos OS Evolved >= 25.4X300 and < 25.4X300-D40-EVO

Patched Versions

Juniper Networks Junos OS 23.2R2-S7.7
Juniper Networks Junos OS 23.4R2-S8.13
Juniper Networks Junos OS 24.2R2-S5.5
Juniper Networks Junos OS 24.4R2-S5
Juniper Networks Junos OS 25.2R2-S2
Juniper Networks Junos OS 25.4R1-S3
Juniper Networks Junos OS 26.2R1-S2
Juniper Networks Junos OS Evolved 23.2R2-S7.7-EVO
Juniper Networks Junos OS Evolved 23.4R2-S8.11-EVO
Juniper Networks Junos OS Evolved 24.2R2-S5.6-EVO
Juniper Networks Junos OS Evolved 24.4R2-S5-EVO
Juniper Networks Junos OS Evolved 25.2R2-S2-EVO
Juniper Networks Junos OS Evolved 25.4R1-S3-EVO
Juniper Networks Junos OS Evolved 26.2R1-S2-EVO
Juniper Networks Junos OS Evolved 25.2X100-D35-EVO
Juniper Networks Junos OS Evolved 25.4X300-D40-EVO

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