CVE-2025-27535

Severity: medium (CVSS 4.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-10 · updated 2026-06-17
Weakness: CWE-782

Description

Exposed ioctl with insufficient access control in the firmware for some Intel(R) Ethernet Connection E825-C. before version NVM ver. 3.84 within Ring 0: Bare Metal OS may allow a denial of service. System software adversary with a privileged user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Affected products

100GbE Intel(R) Ethernet Controller E810: before 30.3 — fixed in 30.3

How to fix

Upgrade to a fixed version: 100GbE Intel(R) Ethernet Controller E810 30.3. Check the vendor advisory for mitigations.

References

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01171.html

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