Exposed ioctl with insufficient access control in the firmware for some Intel(R) Ethernet…
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Intel(R) Ethernet Connection E825-C. | before version NVM ver. 3.84 | — | No fix listed | CNA |
- Intel(R) Ethernet Connection E825-C. Vendor— Affected before version NVM ver. 3.84 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-27535
- 2026-10-03 Alias added: GHSA-gq25-2cxw-wfmp
References
More Intel Ethernet Controller vulnerabilities
- TI-2025-20093 Out-of-bounds write in Intel Ethernet Controller E810 CVSS 4.0MEDIUM 6.7
- TI-2025-23130 Out-of-bounds read in 100GbE Intel Ethernet Network Adapter E810 CVSS 4.0MEDIUM 6.0
- TI-2025-18560 Uncaught exception in the firmware for some 100GbE Intel(R) Ethernet Controller E810… CVSS 4.0MEDIUM 6.0
Sources
- CVE-2025-27535 · CVE Program
- CVE-2025-27535 · NVD
- FIRST EPSS
- GHSA-gq25-2cxw-wfmp · GitHub Advisory Database · CC BY 4.0
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