Internet Explorer
by Microsoft
Immediate action recommended
Internet Explorer has critical exploitation rates across its known vulnerabilities.
What to do
- Check for patches and apply immediately
- Review whether this software can be replaced with a safer alternative
- Consult your IT provider about mitigation options
What Attackers Target
Vulnerabilities with high exploit probability
73.6%
Confirmed actively exploited (CISA)
9.3%
Public exploit code available
15.2%
Based on 440 known vulnerabilities. Percentages show the proportion that are actively dangerous — a low percentage means most vulnerabilities in this product are not being exploited.
Most Dangerous Vulnerabilities
| CVE | CVSS | Exploit Probability | Confirmed |
|---|---|---|---|
| CVE-2015-4000 | 3.7 | 93.9% | — |
| CVE-2020-0674 | 7.5 | 93.6% | Yes |
| CVE-2014-0322 | 8.8 | 93.2% | Yes |
| CVE-2015-0311 | 9.8 | 92.8% | Yes |
| CVE-2015-0313 | 9.8 | 92.8% | Yes |
| CVE-2021-26411 | 8.8 | 92.5% | Yes |
| CVE-2019-0752 | 7.5 | 92.0% | Yes |
| CVE-2012-4969 | 8.1 | 91.8% | Yes |
| CVE-2020-1380 | 7.8 | 91.7% | Yes |
| CVE-2012-4792 | 8.8 | 91.4% | Yes |
| CVE-2013-2551 | 8.8 | 91.3% | Yes |
| CVE-2016-0189 | 7.5 | 91.3% | Yes |
| CVE-2017-0037 | 8.1 | 90.5% | Yes |
| CVE-2010-0249 | 8.8 | 90.1% | — |
| CVE-2010-3962 | 8.1 | 89.9% | Yes |
| CVE-2019-1367 | 7.5 | 89.2% | Yes |
| CVE-2013-3897 | 8.8 | 88.2% | Yes |
| CVE-2013-1347 | 8.8 | 87.7% | Yes |
| CVE-2006-3730 | 8.8 | 86.9% | — |
| CVE-2017-0059 | 4.3 | 83.9% | Yes |
79
/ 100
critical-risk
Active Threat
50/50 · Critical
Exploit Availability
29/50 · Moderate
Score uses Wilson score intervals to account for sample size. Products with few CVEs are scored conservatively.