CVSS 4.0
7.0 highCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:HCVE-2026-73459
On affected platforms running Arista EOS with IS-IS configured, an unauthenticated attacker who can inject a specially crafted IS-IS LSP PDU can cause the legitimate LSP to be unexpectedly purged from the IS-IS link-state database. This may result in traffic loss.
Severity
CVSS 3.1
7.4 highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-31)
- CWE
- CWE-354
- Published
- Modified
- Record from
- the NVD, synced