CVE-2021-0208
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- 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: In bidirectional LSP configurations, on MPLS egress router RPD may core upon receipt of specific malformed RSVP packet.
An improper input validation vulnerability in the Routing Protocol Daemon (RPD) service of Juniper Networks Junos OS allows an attacker to send a malformed RSVP packet when bidirectional LSPs are in use, which when received by an egress router crashes the RPD causing a Denial of Service (DoS) condition. Continued receipt of the packet will sustain the Denial of Service. This issue affects: Juniper Networks Junos OS: All versions prior to 17.3R3-S10 except 15.1X49-D240 for SRX series; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S2; 19.1 versions prior to 19.1R1-S5, 19.1R3-S3; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3-S1; 20.1 versions prior to 20.1R1-S4, 20.1R2; 15.1X49 versions prior to 15.1X49-D240 on SRX Series. Juniper Networks Junos OS Evolved: 19.3 versions prior to 19.3R2-S5-EVO; 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S4-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
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| unspecified | affected | custom | 17.3R3-S10 | Unavailable | None listed |
| 17.4 | affected | custom | 17.4R3-S2 | Unavailable | None listed |
| 18.1 | affected | custom | 18.1R3-S10 | Unavailable | None listed |
| 18.2 | affected | custom | 18.2R2-S7, 18.2R3-S4 | Unavailable | None listed |
| 18.3 | affected | custom | 18.3R3-S2 | Unavailable | None listed |
| 18.4 | affected | custom | 18.4R1-S8, 18.4R2-S6, 18.4R3-S2 | Unavailable | None listed |
| 19.1 | affected | custom | 19.1R1-S5, 19.1R3-S3 | Unavailable | None listed |
| 19.2 | affected | custom | 19.2R3 | Unavailable | None listed |
| 19.3 | affected | custom | 19.3R2-S5, 19.3R3 | Unavailable | None listed |
| 19.4 | affected | custom | 19.4R2-S2, 19.4R3-S1 | Unavailable | None listed |
| 20.1 | affected | custom | 20.1R1-S4, 20.1R2 | Unavailable | None listed |
Junos OS
- Vendor
- Juniper Networks
- Product
- Junos OS
- Platforms
- SRX Series
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 15.1X49 | affected | custom | 15.1X49-D240 | Unavailable | None listed |
Junos OS Evolved
- Vendor
- Juniper Networks
- Product
- Junos OS Evolved
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 19.3 | affected | custom | 19.3R2-S5-EVO | Unavailable | None listed |
| 19.4 | affected | custom | 19.4R2-S2-EVO | Unavailable | None listed |
| 20.1 | affected | custom | 20.1R1-S4-EVO | Unavailable | None listed |