Memory leak in Junos OS - CVE-2026-33782
Published: April 8, 2026
Vulnerability identifier: #VU125521
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33782
CWE-ID: CWE-401
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to missing release of memory after effective lifetime error in the DHCP daemon (jdhcpd). A remote non-authenticated attacker can cause a memory leak, that will eventually cause a complete Denial-of-Service (DoS).
Affected software
Junos OS
How to mitigate CVE-2026-33782
Install updates from vendor's website.
Junos OS - addressed in versions 22.4R3-S1, 23.2R2, 23.4R2, 24.2R1