CVE-2026-33797

Published: Apr 09, 2026 Last Modified: Apr 16, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,1
Source: [email protected]
Attack Vector: adjacent
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,4
Source: [email protected]
Attack Vector: adjacent_network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

An Improper Input Validation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker, sending a specific genuine BGP packet in an already established BGP session to reset only that session causing a Denial of Service (DoS).

An attacker repeatedly sending the packet will sustain the Denial of Service (DoS).This issue affects Junos OS:

* 25.2 versions before 25.2R2

This issue doesn't not affected Junos OS versions before 25.2R1.

This issue affects Junos OS Evolved:
* 25.2-EVO versions before 25.2R2-EVO

This issue doesn't not affected Junos OS Evolved versions before 25.2R1-EVO.

eBGP and iBGP are affected.
IPv4 and IPv6 are affected.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0002
Percentile
0,1th
Updated

EPSS Score Trend (Last 7 Days)

20

Improper Input Validation

Stable
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Confidentiality Integrity
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Read Memory Read Files Or Directories Modify Memory Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
Operating System

Junos Os Evolved by Juniper

Product Information
Vendor Juniper
Product Junos Os Evolved
Version 25.2
cpe:2.3:o:juniper:junos_os_evolved:25.2:r1-s2:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Junos by Juniper

Product Information
Vendor Juniper
Product Junos
Version 25.2
cpe:2.3:o:juniper:junos:25.2:r1-s2:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Junos by Juniper

Product Information
Vendor Juniper
Product Junos
Version 25.2
cpe:2.3:o:juniper:junos:25.2:-:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Junos by Juniper

Product Information
Vendor Juniper
Product Junos
Version 25.2
cpe:2.3:o:juniper:junos:25.2:r1-s1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Junos Os Evolved by Juniper

Product Information
Vendor Juniper
Product Junos Os Evolved
Version 25.2
cpe:2.3:o:juniper:junos_os_evolved:25.2:r1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Junos Os Evolved by Juniper

Product Information
Vendor Juniper
Product Junos Os Evolved
Version 25.2
cpe:2.3:o:juniper:junos_os_evolved:25.2:r1-s1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Junos by Juniper

Product Information
Vendor Juniper
Product Junos
Version 25.2
cpe:2.3:o:juniper:junos:25.2:r1:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Junos Os Evolved by Juniper

Product Information
Vendor Juniper
Product Junos Os Evolved
Version 25.2
cpe:2.3:o:juniper:junos_os_evolved:25.2:-:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://kb.juniper.net/JSA107850
https://kb.juniper.net/JSA107850