Buffer overflow in Juniper Networks Junos Os
CVE-2026-33799
An Out-of-bounds Write vulnerability in the SNMP daemon (snmpd) of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated network-based attacker sending specific valid SNMPv3 queries to trigger a memory leak. Over time, con…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Juniper Networks Junos Os — versions 0, 21.4, 22.1
- Juniper Networks Junos Os Evolved — versions 0, 21.4, 22.1
Weakness classification (CWE)
References
- sirt@juniper.net (vendor-advisory)
Frequently asked questions
- What is CVE-2026-33799?
- CVE-2026-33799 is a medium-severity vulnerability in Juniper Networks Junos Os, classified under Out-of-bounds Write. CVSS score: 4.3/10. Published 2026-07-09.
- How severe is CVE-2026-33799?
- Medium severity. CVSS v3 base score is 4.3 out of 10.