How severe is CVE-2013-3173?

CVE-2013-3173 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2013-3173 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3173?

CVE-2013-3173 primarily affects Microsoft Windows 7. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3173?

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-2013-3173 published?

CVE-2013-3173 was published on 2013-07-10 and last updated on 2026-06-16.

CVE-2013-3173

CVE-2013-3173 is a high-severity vulnerability in Microsoft Windows 7 with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows 7
Published: 2013-07-10
Last modified: 2026-06-16

Description

Buffer overflow in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT allows local users to gain privileges via a crafted application that leverages improper handling of objects in memory, aka "Win32k Buffer Overwrite Vulnerability."

Frequently asked questions

What is CVE-2013-3173?: Buffer overflow in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT allows local users to gain privileges via a crafted application that leverages improper handling of objects in memory, aka "Win32k Buffer Overwrite Vulnerability."
How severe is CVE-2013-3173?: CVE-2013-3173 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2013-3173 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3173?: CVE-2013-3173 primarily affects Microsoft Windows 7. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3173?: 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-2013-3173 published?: CVE-2013-3173 was published on 2013-07-10 and last updated on 2026-06-16.

References

Affected products (13)

cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*
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_2003:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*

More vulnerabilities in Microsoft Windows 7

CVE-2020-1467 — Critical (CVSS 10.0): An elevation of privilege vulnerability exists when Windows improperly handles hard links. An attacker who successfully…
CVE-2015-2373 — Critical (CVSS 10.0): The Remote Desktop Protocol (RDP) server service in Microsoft Windows 7 SP1, Windows 8, and Windows Server 2012 allows…
CVE-2015-0014 — Critical (CVSS 10.0): Buffer overflow in the Telnet service in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2…
CVE-2014-6321 — Critical (CVSS 10.0): Schannel in Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1,…
CVE-2013-3195 — Critical (CVSS 10.0): The DSA_InsertItem function in Comctl32.dll in the Windows common control library in Microsoft Windows XP SP2, Windows…
CVE-2013-3175 — Critical (CVSS 10.0): Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1,…

All CVEs affecting Microsoft Windows 7 →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →