CVE-2023-36835
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Junos OS: QFX10000 Series: All traffic will be dropped after a specific valid IP packet has been received which needs to be routed over a VXLAN tunnel
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX10000 Series allows a network based attacker to cause a Denial of Service (DoS). If a specific valid IP packet is received and that packet needs to be routed over a VXLAN tunnel, this will result in a PFE wedge condition due to which traffic gets impacted. As this is not a crash and restart scenario, this condition will persist until the system is rebooted to recover. This issue affects Juniper Networks Junos OS on QFX10000: 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S5; 21.3 versions prior to 21.3R3-S4; 21.4 versions prior to 21.4R3-S1; 22.1 versions prior to 22.1R3; 22.2 versions prior to 22.2R2; 22.3 versions prior to 22.3R1-S2, 22.3R2.
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
- QFX10000 Series
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 20.3 | affected | custom | 20.3* | Unavailable |
|
| 20.4 | affected | custom | 20.4R3-S5 | Unavailable | None listed |
| 21.1 | affected | custom | 21.1R3-S5 | Unavailable | None listed |
| 21.2 | affected | custom | 21.2R3-S5 | Unavailable | None listed |
| 21.3 | affected | custom | 21.3R3-S4 | Unavailable | None listed |
| 21.4 | affected | custom | 21.4R3-S1 | Unavailable | None listed |
| 22.1 | affected | custom | 22.1R3 | Unavailable | None listed |
| 22.2 | affected | custom | 22.2R2 | Unavailable | None listed |
| 22.3 | affected | custom | 22.3R1-S2, 22.3R2 | Unavailable | None listed |