๐Ÿ›ก๏ธ CVE-2026-33797
๐ŸŸ  CVSS 7.4 โ€” High โœ… No Known Exploit CWE-20 NVD
7.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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 does not affect Junos OS versions before 25.2R1. This issue affects Junos OS Evolved: * 25.2-EVO versions before 25.2R2-EVO This issue does not affect Junos OS Evolved versions before 25.2R1-EVO. eBGP and iBGP are affected. IPv4 and IPv6 are affected.

Details

Severity HIGH
CVSS Score 7.4
CVSS Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE CWE-20
Public Exploit โœ… No
Source NVD
Published 2026-04-09
Updated 2026-06-02
Modified 2026-04-23
Fix URL N/A

Affected Packages

Software From version Fixed in
junos โ€” โ€”
junos-os-evolved โ€” โ€”

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