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."

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HIGH

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."

Published Jul 10, 2013

7.2

HIGH

CVSS 2.0

EPSS 1.96%

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."

Remediation

No remediation recorded yet.

Metrics

1.96% 0.01955

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01955

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 (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.96% (0.01955)	79.54th	v5 (v2026.06.15)
Jun 15, 2026	1.96% (0.01955)	77.59th	v5 (v2026.06.15)
Oct 18, 2025	2.63% (0.02625)	85.11th	v4 (v2025.03.14)
Mar 17, 2025	1.09% (0.01093)	76.42th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00044)	14.69th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	0.50th	v3 (v2023.03.01)
Mar 6, 2023	1.21% (0.01205)	61.88th	v2 (v2022.01.01)
Oct 19, 2022	1.21% (0.01205)	60.89th	v2 (v2022.01.01)
Apr 1, 2022	1.21% (0.01205)	58.88th	v2 (v2022.01.01)
Feb 4, 2022	1.21% (0.01205)	35.25th	v2 (v2022.01.01)

Weaknesses (1)

CWE-119

Buffer Overflow

References (3)

http://www.us-cert.gov/ncas/alerts/TA13-190A
third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-053
vendor-advisoryx_refsource_MS
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17148
vdb-entrysignaturex_refsource_OVAL

Link	Providers	Tags
http://www.us-cert.gov/ncas/alerts/TA13-190A		third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-053		vendor-advisoryx_refsource_MS
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17148		vdb-entrysignaturex_refsource_OVAL

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Jul 10, 2013

Updated Aug 6, 2024

Reserved Apr 17, 2013

Link CVE-2013-3173

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2013-3173

Red Hat

Severity n/a

Public date n/a

Links CVE-2013-3173