Firepower Threat Defense
by Cisco
Standard maintenance is sufficient
Firepower Threat Defense has low exploitation rates. Attackers rarely target this software's known vulnerabilities.
What to do
- Keep automatic updates enabled
- No urgent action needed
- Review periodically as part of normal maintenance
What Attackers Target
Vulnerabilities with high exploit probability
5.8%
Confirmed actively exploited (CISA)
4.9%
Public exploit code available
0.0%
Based on 226 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-2020-3452 | 7.5 | 94.5% | Yes |
| CVE-2018-0296 | 7.5 | 94.4% | Yes |
| CVE-2023-44487 | 7.5 | 94.4% | Yes |
| CVE-2021-44228 | 10.0 | 94.4% | Yes |
| CVE-2020-3187 | 9.1 | 94.3% | — |
| CVE-2020-3580 | 6.1 | 93.4% | Yes |
| CVE-2018-0101 | 10.0 | 92.8% | — |
| CVE-2020-3259 | 7.5 | 69.7% | Yes |
| CVE-2025-20362 | 6.5 | 46.9% | Yes |
| CVE-2019-1978 | 5.8 | 40.2% | — |
| CVE-2024-20353 | 8.6 | 24.4% | Yes |
| CVE-2022-20759 | 8.8 | 13.4% | — |
| CVE-2025-20333 | 9.9 | 10.6% | Yes |
| CVE-2022-20866 | 7.4 | 8.9% | — |
| CVE-2025-20363 | 9.0 | 5.7% | — |
| CVE-2019-15992 | 7.2 | 5.0% | — |
| CVE-2018-0228 | 8.6 | 4.2% | — |
| CVE-2018-15454 | 8.6 | 4.1% | — |
| CVE-2021-40114 | 6.8 | 3.4% | — |
| CVE-2020-3554 | 7.5 | 3.2% | — |
11
/ 100
low-risk
Active Threat
7/50 · Minimal
Exploit Availability
4/50 · Minimal
Score uses Wilson score intervals to account for sample size. Products with few CVEs are scored conservatively.