CVE-2013-3660
Confirmed PUBLISHEDThe EPATHOBJ::pprFlattenRec function in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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."
- CVE Published
- May 24, 2013
- Exploitation Reported
- Mar 28, 2022
- CVSS
- 7.8 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| n/a |
n/a
|
n/a |
Affected |
CVE References
- MS13-053 docs.microsoft.com · Vendor Advisory https://docs.microsoft.com/en-us/security-updates/securitybulletins/2...
- 53435 secunia.com · Third-Party Advisory http://secunia.com/advisories/53435
- TA13-190A us-cert.gov · Third-Party Advisory http://www.us-cert.gov/ncas/alerts/TA13-190A
- 25611 exploit-db.com · Exploit http://www.exploit-db.com/exploits/25611/
- 93539 osvdb.org · VDB Entry http://www.osvdb.org/93539
Show 9 more references
- oval:org.mitre.oval:def:17360 oval.cisecurity.org · VDB Entry https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.m...
- 20130517 Re: exploitation ideas under memory pressure archives.neohapsis.com · Mailing List http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0094.html
- 20130517 exploitation ideas under memory pressure archives.neohapsis.com · Mailing List http://archives.neohapsis.com/archives/fulldisclosure/2013-05/0090.html
- 20130603 Re: exploitation ideas under memory pressure archives.neohapsis.com · Mailing List http://archives.neohapsis.com/archives/fulldisclosure/2013-06/0006.html
- twitter.com/taviso/statuses/309157606247768064 twitter.com · CVE Record http://twitter.com/taviso/statuses/309157606247768064
- computerworld.com/s/article/9239477 computerworld.com · CVE Record http://www.computerworld.com/s/article/9239477
- theverge.com/2013/5/23/4358400/google-engineer-bashes-mic... theverge.com · CVE Record http://www.theverge.com/2013/5/23/4358400/google-engineer-bashes-micr...
- reddit.com/r/netsec/comments/1eqh66/0day_windows_kernel... reddit.com · CVE Record http://www.reddit.com/r/netsec/comments/1eqh66/0day_windows_kernel_ep...
- twitter.com/taviso/statuses/335557286657400832 twitter.com · CVE Record http://twitter.com/taviso/statuses/335557286657400832
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-03-28 00:00 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/local/ppr_flatten_rec.rb | Apr 28, 2025 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:L/AC:M/Au:N/C:C/I:C/A:C
Exploitation Status
Exploited in the wild
Recorded 2022-03-28 00:00:00 UTC · CISA
Proof of concept available
Recorded 2022-01-29 02:14:26 UTC · GitHub
Weaknesses (CWE)
-
Improper Restriction of Operations within the Bounds of a Memory Buffer
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/local/ppr_flatten_rec.rb | Apr 28, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2022-01-29 02:14:26 UTC · 4 stars
CVE-2013-3660的x64 win7平台EXP源代码，成功率100%。
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
15:03 UTC about 1 year ago15:03 UTC · about 1 year ago
Metasploit module available
Exploit module available
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
02:14 UTC over 4 years ago02:14 UTC · over 4 years ago
Public PoC available
Public proof-of-concept code published
-
20:00 UTC about 13 years ago20:00 UTC · about 13 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC about 13 years ago00:00 UTC · about 13 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2013-3660
{
"cve_id": "CVE-2013-3660",
"title": "The EPATHOBJ::pprFlattenRec function in win32k.sys in the kernel-mode drivers...",
"affected_vendor": "Microsoft",
"affected_product": "Windows",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}