CVE-2026-73455
CVSS v3
7.5
HIGH
EPSS Score
0.5 %
exploit probability, as of 2026-09-28
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, a specially crafted packet can cause the OSPFv3 agent to restart unexpectedly.
Technical details
- Published
- 2026-09-16
- Last Modified
- 2026-09-16
Frequently asked questions
What is CVE-2026-73455?
On affected platforms running Arista EOS with Open Shortest Path First version 3 (OSPFv3) configured, a specially crafted packet can cause the OSPFv3 agent to restart unexpectedly.
Is CVE-2026-73455 actively exploited?
Active exploitation of CVE-2026-73455 has not been confirmed. Its EPSS score was 0.5% on 2026-09-28, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-73455?
CVE-2026-73455 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2026-73455 affecting your environment?
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