Improper restriction of communication channel to intended endpoints in Junos OS Evolved - CVE-2026-33803
Published: July 8, 2026
Vulnerability identifier: #VU137145
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33803
CWE-ID: CWE-923
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read memory contents or crash the application.
The vulnerability exists due to improper restriction of communication channel to intended endpoints error. A remote non-authenticated attacker can cause a limited information disclosure and availability impact to the device.
Affected software
Junos OS Evolved
How to mitigate CVE-2026-33803
Install updates from vendor's website.
Junos OS Evolved - addressed in versions 23.2R2-S7-EVO, 23.4R2-S8-EVO, 24.2R2-S5-EVO, 24.4R2-S4-EVO, 25.2R2-S1-EVO, 25.4R1-S2-EVO, 25.4R2-EVO, 26.2R1-EVO