How severe is CVE-2014-0254?

CVE-2014-0254 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2014-0254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 33% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-0254?

CVE-2014-0254 primarily affects Microsoft Windows 8. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-0254?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-0254 published?

CVE-2014-0254 was published on 2014-02-12 and last updated on 2026-06-17.

CVE-2014-0254

CVE-2014-0254 is a high-severity vulnerability in Microsoft Windows 8 with a CVSS 2.0 base score of 7.8. Its EPSS exploit-prediction score of 33% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 33% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Windows 8
Published: 2014-02-12
Last modified: 2026-06-17

Description

The IPv6 implementation in Microsoft Windows 8, Windows Server 2012, and Windows RT does not properly validate packets, which allows remote attackers to cause a denial of service (system hang) via crafted ICMPv6 Router Advertisement packets, aka "TCP/IP Version 6 (IPv6) Denial of Service Vulnerability."

Frequently asked questions

What is CVE-2014-0254?: The IPv6 implementation in Microsoft Windows 8, Windows Server 2012, and Windows RT does not properly validate packets, which allows remote attackers to cause a denial of service (system hang) via crafted ICMPv6 Router Advertisement packets, aka "TCP/IP Version 6 (IPv6) Denial of Service Vulnerability."
How severe is CVE-2014-0254?: CVE-2014-0254 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2014-0254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 33% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-0254?: CVE-2014-0254 primarily affects Microsoft Windows 8. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-0254?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-0254 published?: CVE-2014-0254 was published on 2014-02-12 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*

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