Microsoft Internet Explorer 9 and 10 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2013-3161.
CVE-2013-3143
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 98.1%
- KEV
- Not listed
Published
July 10, 2013
Last Modified
April 29, 2026
References (12)
- secure@microsofthttp://blog.skylined.nl/20161214001.html
- secure@microsofthttp://packetstormsecurity.com/files/140166/Microsoft-Internet-Explorer-9-IEFRAME-CMarkup..RemovePointerPos-Use-After-Free.html
- secure@microsofthttp://www.us-cert.gov/ncas/alerts/TA13-190A
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055
- secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17259
- secure@microsofthttps://www.exploit-db.com/exploits/40923/
- af854a3a-2127-422b-91ae-364da2661108http://blog.skylined.nl/20161214001.html
- af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/140166/Microsoft-Internet-Explorer-9-IEFRAME-CMarkup..RemovePointerPos-Use-After-Free.html
- af854a3a-2127-422b-91ae-364da2661108http://www.us-cert.gov/ncas/alerts/TA13-190A
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055
- af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17259
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/40923/
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 27× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
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- 2026-06-28 04:53 UTCEPSS rescore
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- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
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- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-21 14:53 UTCEPSS rescore
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- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-17 17:49 UTCEPSS rescore
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- 2026-06-16 17:49 UTCEPSS rescore
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- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
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- 2026-06-11 13:56 UTCEPSS rescore
- 2026-06-10 13:18 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
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- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 23:23 UTCEG score recompute
- 2026-05-28 23:23 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-21 22:39 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(2 references)Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-40923✓ verifiedFirst seen Dec 15, 2016
Microsoft Internet Explorer 9 - IEFRAME CMarkup::RemovePointerPos Use-After-Free (MS13-055)
Open source ↗ - Exploit-DBEDB-28187✓ verifiedFirst seen Sep 10, 2013
Microsoft Internet Explorer - CAnchorElement Use-After-Free (MS13-055) (Metasploit)
Open source ↗
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- CVE-2005-1876EG 4.5MEDIUM
- CVE-2003-1599EG 0.0NONE
- CVE-2006-1318EG 0.0EPSS 96%NONE
- CVE-2006-1301EG 0.0EPSS 95%NONE
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- CVE-2006-1304EG 0.0EPSS 95%NONE
Frequently asked(4)
What is CVE-2013-3143?
When was CVE-2013-3143 disclosed?
Is CVE-2013-3143 actively exploited?
How do I remediate CVE-2013-3143?
Dependency Blast Radius
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