CVE-2026-73446
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)
Security Advisory 0160
On affected platforms running Arista EOS with IS-IS configured on a broadcast interface, an unauthenticated attacker can send a crafted IS-IS Hello Protocol Data Unit (PDU) that causes the device to tear down an established IS-IS adjacency. This may result in traffic disruption and loss of IP reachability for prefixes advertised through that adjacency.
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.
EOS
- Vendor
- Arista Networks
- Product
- EOS
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.36.0 | affected | custom | Unavailable | 4.36.1F | None listed |
| 4.35.0 | affected | custom | Unavailable | 4.35.5M | None listed |
| 4.34.0 | affected | custom | Unavailable | 4.34.7.1M | None listed |
| 4.33.0 | affected | custom | Unavailable | 4.33.9M | None listed |
| 4.32.0 | affected | custom | 4.33.0F | Unavailable | None listed |
| 4.31.0 | affected | custom | 4.32.0F | Unavailable | None listed |