The Windows NAT Driver (aka winnat) service in Microsoft Windows Server 2012 does not properly validate memory addresses during the processing of ICMP packets, which allows remote attackers to cause a denial of service (memory corruption and system hang) via crafted packets, aka "Windows NAT Denial of Service Vulnerability."
Published Aug 14, 2013
7.8
HIGHCVSS 2.0
EPSS 94.60%
Description
The Windows NAT Driver (aka winnat) service in Microsoft Windows Server 2012 does not properly validate memory addresses during the processing of ICMP packets, which allows remote attackers to cause a denial of service (memory corruption and system hang) via crafted packets, aka "Windows NAT Denial of Service Vulnerability."
Affected products
No data.
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 94.60% (0.94602) | 99.85th | v5 (v2026.06.15) |
| Sep 14, 2026 | 94.68% (0.94683) | 99.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 96.14% (0.96136) | 99.87th | v5 (v2026.06.15) |
| Feb 16, 2026 | 88.83% (0.88835) | 99.50th | v4 (v2025.03.14) |
| Jan 11, 2026 | 87.66% (0.87664) | 99.44th | v4 (v2025.03.14) |
| Jul 31, 2025 | 80.59% (0.80586) | 99.09th | v4 (v2025.03.14) |
| Mar 29, 2025 | 83.13% (0.83126) | 99.07th | v4 (v2025.03.14) |
| Mar 17, 2025 | 84.15% (0.84153) | 99.27th | v4 (v2025.03.14) |
| Mar 14, 2025 | 58.87% (0.58872) | 97.97th | v3 (v2023.03.01) |
| Dec 17, 2024 | 61.91% (0.61914) | 97.97th | v3 (v2023.03.01) |
| Sep 7, 2024 | 25.95% (0.25945) | 96.80th | v3 (v2023.03.01) |
| Jul 4, 2024 | 29.53% (0.29534) | 96.95th | v3 (v2023.03.01) |
| May 1, 2024 | 34.70% (0.34704) | 97.06th | v3 (v2023.03.01) |
| Mar 1, 2024 | 45.99% (0.45987) | 97.32th | v3 (v2023.03.01) |
| Jan 7, 2024 | 51.89% (0.51890) | 97.29th | v3 (v2023.03.01) |
| Nov 18, 2023 | 54.90% (0.54897) | 97.30th | v3 (v2023.03.01) |
| Oct 1, 2023 | 63.44% (0.63442) | 97.44th | v3 (v2023.03.01) |
| Aug 13, 2023 | 77.63% (0.77627) | 97.80th | v3 (v2023.03.01) |
| Jun 27, 2023 | 90.64% (0.90637) | 98.35th | v3 (v2023.03.01) |
| May 11, 2023 | 93.63% (0.93628) | 98.64th | v3 (v2023.03.01) |
| Mar 27, 2023 | 94.45% (0.94445) | 98.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 95.08% (0.95085) | 98.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 70.05% (0.70053) | 99.15th | v2 (v2022.01.01) |
| Feb 4, 2022 | 70.05% (0.70053) | 98.99th | v2 (v2022.01.01) |
References (3)
- http://www.us-cert.gov/ncas/alerts/TA13-225A third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-064 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18199 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.us-cert.gov/ncas/alerts/TA13-225A | third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-064 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18199 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.