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Vulnerabilities

Vulnerability · 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.

Published Feb 10, 2026 · catalog updated Feb 10, 2026 · Intel(R) Ethernet Controller E810

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-27243. EPSS is 0.13%. Act only if a listed version of Intel(R) Ethernet Controller E810 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.13%
Remediation
Version ranges on file
Affected products
vendor n/a Intel(R) Ethernet Controller E810 before version cvl fw 1.7.8.x

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 complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not 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 subseq

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor n/a Intel(R) Ethernet Controller E810 before version cvl fw 1.7.8.xbefore version cvl fw 1.7.8.x

How to fix CVE-2025-27243

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-27243. EPSS is 0.13%. Act only if a listed version of Intel(R) Ethernet Controller E810 is installed.

Which versions are affected?

Compare what you have installed with n/a Intel(R) Ethernet Controller E810 before version cvl fw 1.7.8.x before version cvl fw 1.7.8.x. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.13%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 10, 2026 · EUVD

    Detected

    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 complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special intern

  2. Feb 10, 2026 · EUVD

    Fix available

    n/a Intel(R) Ethernet Controller E810 before version cvl fw 1.7.8.x fixed in version cvl fw 1.7.8.x

  3. Feb 10, 2026 · EUVD

    Updated

    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 complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special intern

Sources

  • CVE.orgVulnerability recordCVE-2025-27243

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-27243

    30-day exploitation probability 0.13%

    first.org
  • EUVDVulnerability recordEUVD-2025-207270

    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 complexity attack may enable denial of ser

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 4, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 3, 2026