Buffer overflow in Intel Ethernet_controller
CVE-2025-27243
Out-of-bounds write in the firmware for some Intel(R) Ethernet Controller E810 before version cvl fw 1.7.8.x within Ring 0: Bare Metal OS may allow a denial of service. System software adversary with a privileged user combined with a low c…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (1.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Intel Ethernet_controller
- Intel Ethernet_network_adapter_e810-2cqda2
- Intel Ethernet_network_adapter_e810-cqda1
- Intel Ethernet_network_adapter_e810-cqda1_for_ocp_3.0
- Intel Ethernet_network_adapter_e810-cqda2
- Intel Ethernet_network_adapter_e810-cqda2_for_ocp_3.0
- Intel Ethernet_network_adapter_e810-cqda2t
- Intel Ethernet_network_adapter_e810-xxvda2
- Intel Ethernet_network_adapter_e810-xxvda2_for_ocp_3.0
- Intel Ethernet_network_adapter_e810-xxvda4
Weakness classification (CWE)
References
- secure@intel.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-27243?
- CVE-2025-27243 is a medium-severity vulnerability in Intel Ethernet_controller, classified under Out-of-bounds Write. CVSS score: 6.0/10. Published 2026-02-10.
- How severe is CVE-2025-27243?
- Medium severity. CVSS v3 base score is 6.0 out of 10.