Microsoft · Internet Explorer
CVE-2013-1347
Microsoft Internet Explorer Remote Code Execution Vulnerability
What it is
Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly allocated or (2) is deleted, as exploited in the wild in May 2013.
CISA: This vulnerability may corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user within Internet Explorer.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: March 24, 2022
- Added to the CISA list
- March 3, 2022
- Published
- May 5, 2013
- Severity
- High 8.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 78% in the top 0.4% of all known vulnerabilities
- Weakness
- CWE-94
- More details
- NVD · CVE.org · CISA
All references (5)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-038
- http://www.exploit-db.com/exploits/25294
- http://www.us-cert.gov/ncas/alerts/TA13-134A
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16727
- http://technet.microsoft.com/security/advisory/2847140
More exploited flaws from Microsoft
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| May 20, 2026 | Use-After-Free | Internet Explorer | High 8.8 | 92% |
| May 20, 2026 | Use-After-Free | Internet Explorer | High 8.8 | 82% |
| Oct 6, 2025 | Uninitialized Memory Corruption | Internet Explorer | High 8.1 | 97% |
| Aug 12, 2025 | Resource Management Errors | Internet Explorer | High 8.8 | 88% |
| Jul 23, 2024 | Use-After-Free | Internet Explorer | High 8.8 | 79% |
| Mar 30, 2023 | Memory Corruption | Internet Explorer | High 8.8 | 71% |
| Jun 8, 2022 | Use-After-Free | Internet Explorer | High 8.1 | 80% |
| May 25, 2022 | Information Disclosure | Internet Explorer | Medium 6.5 | 50% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.