Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2013-3660

CVE-2013-3660HIGH

n/a n/a — Microsoft Win32k

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  H  H  H    7.8   .3932   98.6   YES

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  May 24  Reserved by mitre
  May 24  Published (CNA: mitre)
  Mar 28  Added to CISA KEV, remediation due 2022-04-18

CWE-119 · CNA: mitre · CVSS v3.1 · 15 references · KEV due April 18, 2022

Description

The EPATHOBJ::pprFlattenRec function 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, and Windows Server 2012 does not properly initialize a pointer for the next object in a certain list, which allows local users to obtain write access to the PATHRECORD chain, and consequently gain privileges, by triggering excessive consumption of paged memory and then making many FlattenPath function calls, aka "Win32k Read AV Vulnerability."

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 24, 2013	Reserved	Reserved by mitre
May 24, 2013	Published	Published (CNA: mitre)
March 28, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-04-18

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-119

References (15)

http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0090.html [mailing-list, x_refsource_FULLDISC]
http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0094.html [mailing-list, x_refsource_FULLDISC]
http://archives.neohapsis.com/archives/fulldisclosure/2013-06/0006.html [mailing-list, x_refsource_FULLDISC]
http://secunia.com/advisories/53435 [third-party-advisory, x_refsource_SECUNIA]
http://twitter.com/taviso/statuses/309157606247768064 [x_refsource_MISC]
http://twitter.com/taviso/statuses/335557286657400832 [x_refsource_MISC]
http://www.computerworld.com/s/article/9239477 [x_refsource_MISC]
http://www.exploit-db.com/exploits/25611/ [exploit, x_refsource_EXPLOIT-DB]
http://www.osvdb.org/93539 [vdb-entry, x_refsource_OSVDB]
http://www.reddit.com/r/netsec/comments/1eqh66/0day_windows_kernel_epathobj_vulnerability/ [x_refsource_MISC]
http://www.theverge.com/2013/5/23/4358400/google-engineer-bashes-microsoft-discloses-windows-flaw [x_refsource_MISC]
http://www.us-cert.gov/ncas/alerts/TA13-190A [third-party-advisory, x_refsource_CERT]
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-053 [vendor-advisory, x_refsource_MS]
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17360 [vdb-entry, signature, x_refsource_OVAL]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3660 [government-resource]

Authoritative record: CVE-2013-3660 at cve.org

Weaknesses: CWE-119

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2013-3660 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.