What is CVE-2023-3646?

CVE-2023-3646 is a medium-severity vulnerability in Arista 7280cr3-32d4, classified under Out-of-bounds Read. CVSS score: 5.9/10. Published 2023-08-29.

How severe is CVE-2023-3646?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Out-of-bounds Read in Arista 7280cr3-32d4

CVE-2023-3646

On affected platforms running Arista EOS with mirroring to multiple destinations configured, an internal system error may trigger a kernel panic and cause system reload.

Vulnerability class: Buffer Overflow

Published 2023-08-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.3th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

www.arista.com/en/support/advisories-notices/security-advisory/18042-security-a… (Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2023-3646?: CVE-2023-3646 is a medium-severity vulnerability in Arista 7280cr3-32d4, classified under Out-of-bounds Read. CVSS score: 5.9/10. Published 2023-08-29.
How severe is CVE-2023-3646?: Medium severity. CVSS v3 base score is 5.9 out of 10.