Buffer overflow in Microsoft Windows 7
CVE-2013-3660
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."
Vulnerability class: Buffer Overflow
EPSS: 0.396 (98.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- cve@mitre.org (mailing-list, x_refsource_FULLDISC, Broken Link)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- cve@mitre.org (mailing-list, x_refsource_FULLDISC, Broken Link)
- cve@mitre.org (x_refsource_SECUNIA, Broken Link, Vendor Advisory, third-party-advisory)
- cve@mitre.org (x_refsource_OSVDB, vdb-entry, Broken Link)
- cve@mitre.org (Exploit, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Broken Link)
- cve@mitre.org (x_refsource_MISC, Press/Media Coverage)
- cve@mitre.org (Broken Link, signature, x_refsource_OVAL, vdb-entry)
- cve@mitre.org (Exploit, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2013-3660?
- CVE-2013-3660 is a high-severity vulnerability in Microsoft Windows 7, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2013-05-24.
- How severe is CVE-2013-3660?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2013-3660 known to be exploited?
- Yes. CVE-2013-3660 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.