CVE-2023-36850
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: MX Series: An MPC will crash upon receipt of a malformed CFM packet.
An Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Connectivity Fault Management(CFM) module of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600) allows an adjacent attacker on the local broadcast domain to cause a Denial of Service(DoS). Upon receiving a malformed CFM packet, the MPC crashes. Continued receipt of these packets causes a sustained denial of service. This issue can only be triggered when CFM hasn't been configured. This issue affects: Juniper Networks Junos OS All versions prior to 19.1R3-S10 on MX Series; 19.2 versions prior to 19.2R3-S7 on MX Series; 19.3 versions prior to 19.3R3-S8 on MX Series; 19.4 versions prior to 19.4R3-S12 on MX Series; 20.1 version 20.1R1 and later versions on MX Series; 20.2 versions prior to 20.2R3-S7 on MX Series; 20.3 version 20.3R1 and later versions on MX Series; 20.4 versions prior to 20.4R3-S7 on MX Series; 21.1 versions prior to 21.1R3-S5 on MX Series; 21.2 versions prior to 21.2R3-S4 on MX Series; 21.3 versions prior to 21.3R3-S4 on MX Series; 21.4 versions prior to 21.4R3-S3 on MX Series; 22.1 versions prior to 22.1R3-S2 on MX Series; 22.2 versions prior to 22.2R3 on MX Series; 22.3 versions prior to 22.3R2, 22.3R3 on MX Series; 22.4 versions prior to 22.4R2 on MX Series.
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
- MX Series
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| unspecified | affected | custom | 19.1R3-S10 | Unavailable | None listed |
| 19.2 | affected | custom | 19.2R3-S7 | Unavailable | None listed |
| 19.3 | affected | custom | 19.3R3-S8 | Unavailable | None listed |
| 19.4 | affected | custom | 19.4R3-S12 | Unavailable | None listed |
| 20.1 | affected | custom | 20.1* | Unavailable | None listed |
| 20.2 | affected | custom | 20.2R3-S7 | Unavailable | None listed |
| 20.3 | affected | custom | 20.3* | Unavailable | None listed |
| 20.4 | affected | custom | 20.4R3-S7 | Unavailable | None listed |
| 21.2 | affected | custom | 21.1R3-S5 | Unavailable | None listed |
| 21.2 | affected | custom | 21.2R3-S4 | Unavailable | None listed |
| 21.3 | affected | custom | 21.3R3-S4 | Unavailable | None listed |
| 21.4 | affected | custom | 21.4R3-S3 | Unavailable | None listed |
| 22.1 | affected | custom | 22.1R3-S2 | Unavailable | None listed |
| 22.2 | affected | custom | 22.2R3 | Unavailable | None listed |
| 22.3 | affected | custom | 22.3R2 | Unavailable | None listed |
| 22.4 | affected | custom | 22.4R2 | Unavailable | None listed |