The TCP/IP implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT does not properly perform memory allocation for inbound ICMPv6 packets, which allows remote attackers to cause a denial of service (system hang) via crafted packets, aka "ICMPv6 Vulnerability."
Conclusion & alert: CVE-2013-3183 is rated Moderate Risk (63.4/100): CVSS High severity, with high exploitation likelihood (EPSS 81.53%, 99th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-07-31 | 84.01% | 81.53% | -2.47% |
| 2 | 2025-03-30 | 83.13% | 84.01% | +0.88% |
| 3 | 2025-03-29 | — | 83.13% | — |
Full EPSS history (20 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | windows_7 | — | cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:* |
| microsoft | windows_7 | — | cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:* |
| microsoft | windows_8 | — | cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:* |
| microsoft | windows_8 | — | cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:* |
| microsoft | windows_rt | — | cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:* |
| microsoft | windows_server_2008 | — | cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:* |
| microsoft | windows_server_2008 | — | cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:* |
| microsoft | windows_server_2008 | — | cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:* |
| microsoft | windows_server_2012 | — | cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* |
| microsoft | windows_vista | — | cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.us-cert.gov/ncas/alerts/TA13-225A | Third Party Advisory US Government Resource |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-065 | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17918 |