PatchTheCVECVE-2025-27535: Exposed ioctl with insufficient access control in the firmware for some Intel(R) Ethernet Connection E825-C
CVE-2025-27535 is a medium-severity flaw (CVSS 5.3) affecting ethernet controller. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 require
Why this priority
- No elevated risk signals yet
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.3 (Medium) |
| Attack vector | Local |
| Attack complexity | High |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 98%) |
| CISA exploited list | No |
| Weakness | CWE-782 |
| Published | 2026-02-10 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2025-27535?
ethernet controller: upgrade to 30.3. Exact commands for each OS are on this page.
Is CVE-2025-27535 being exploited?
CVE-2025-27535 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2025-27535 affect?
CVE-2025-27535 affects ethernet controller. Severity is medium (CVSS 5.3). 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 privilege
How urgent is CVE-2025-27535?
Priority 19/100. No elevated risk signals yet.
Software pages
Related CVEs
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- CVE-2025-27243 MEDIUM 6.0 UPGRADE Out-of-bounds write in the firmware for some Intel(R) Ethernet Controller E810 before version cvl fw 1.7.8.x w
- CVE-2025-24851 MEDIUM 6.0 UPGRADE Uncaught exception in the firmware for some 100GbE Intel(R) Ethernet Controller E810 before version cvl fw 1.7