CVE-2026-33799
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Junos OS and Junos OS Evolved: Receipt of a specific SNMPv3 request results in memory leak and eventual snmpd crash
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, continuous receipt of these queries will result in snmpd process memory exhaustion, resulting in a process crash and restart, impacting the ability to monitor the system via SNMP. Memory usage can be monitored using the following command: user@device> show system processes extensive | match snmpd This issue affects: Junos OS: * all versions before 21.2R3-S8; * from 21.4 before 21.4R3-S7; * from 22.1 before 22.1R3-S6; * from 22.2 before 22.2R3-S4; * from 22.3 before 22.3R3-S3; * from 22.4 before 22.4R3-S2; * from 23.2 before 23.2R2; * from 23.4 before 23.4R2. Junos OS Evolved: * all versions before 21.2R3-S8-EVO; * from 21.4 before 21.4R3-S7-EVO; * all versions of 22.1-EVO, * from 22.2 before 22.2R3-S4-EVO; * from 22.3 before 22.3R3-S3-EVO; * all versions of 22.4-EVO, * from 23.2 before 23.2R2-EVO; * from 23.4 before 23.4R2-EVO.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Junos OS
- Vendor
- Juniper Networks
- Product
- Junos OS
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | custom | 21.2R3-S8 | Unavailable | None listed |
| 21.4 | affected | custom | 21.4R3-S7 | Unavailable | None listed |
| 22.1 | affected | custom | 22.1R3-S6 | Unavailable | None listed |
| 22.2 | affected | custom | 22.2R3-S4 | Unavailable | None listed |
| 22.3 | affected | custom | 22.3R3-S3 | Unavailable | None listed |
| 22.4 | affected | custom | 22.4R3-S2 | Unavailable | None listed |
| 23.2 | affected | custom | 23.2R2 | Unavailable | None listed |
| 23.4 | affected | custom | 23.4R2 | Unavailable | None listed |
Junos OS Evolved
- Vendor
- Juniper Networks
- Product
- Junos OS Evolved
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | custom | 21.2R3-S8-EVO | Unavailable | None listed |
| 21.4 | affected | custom | 21.4R3-S7-EVO | Unavailable | None listed |
| 22.1 | affected | custom | 22.1* | Unavailable | None listed |
| 22.2 | affected | custom | 22.2R3-S4-EVO | Unavailable | None listed |
| 22.3 | affected | custom | 22.3R3-S3-EVO | Unavailable | None listed |
| 22.4 | affected | custom | 22.4* | Unavailable | None listed |
| 23.2 | affected | custom | 23.2R2-EVO | Unavailable | None listed |
| 23.4 | affected | custom | 23.4R2-EVO | Unavailable | None listed |