CVE-2020-1686
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2020
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Junos OS: Kernel crash (vmcore) upon receipt of a malformed IPv6 packet.
On Juniper Networks Junos OS devices, receipt of a malformed IPv6 packet may cause the system to crash and restart (vmcore). This issue can be trigged by a malformed IPv6 packet destined to the Routing Engine. An attacker can repeatedly send the offending packet resulting in an extended Denial of Service condition. Only IPv6 packets can trigger this issue. IPv4 packets cannot trigger this issue. This issue affects Juniper Networks Junos OS 18.4 versions prior to 18.4R2-S4, 18.4R3-S1; 19.1 versions prior to 19.1R2-S1, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2. This issue does not affect Juniper Networks Junos OS prior to 18.4R1.
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 | unaffected | custom | 18.4R1 | Unavailable | None listed |
| 18.4 | affected | custom | 18.4R2-S4, 18.4R3-S1 | Unavailable | None listed |
| 19.1 | affected | custom | 19.1R2-S1, 19.1R3 | Unavailable | None listed |
| 19.2 | affected | custom | 19.2R1-S5, 19.2R2 | Unavailable | None listed |
| 19.3 | affected | custom | 19.3R2-S4, 19.3R3 | Unavailable | None listed |
| 19.4 | affected | custom | 19.4R1-S3, 19.4R2 | Unavailable | None listed |