Firefox Esr
by Mozilla
Standard maintenance is sufficient
Firefox Esr 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
2.3%
Confirmed actively exploited (CISA)
0.0%
Public exploit code available
0.2%
Based on 436 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-2022-1802 | 8.8 | 67.9% | — |
| CVE-2024-0741 | 6.5 | 49.1% | — |
| CVE-2020-26950 | 8.8 | 48.3% | — |
| CVE-2019-9816 | 5.9 | 38.2% | — |
| CVE-2018-18500 | 9.8 | 28.2% | — |
| CVE-2019-11730 | 6.5 | 19.7% | — |
| CVE-2022-28281 | 8.8 | 13.8% | — |
| CVE-2024-8381 | 9.8 | 11.6% | — |
| CVE-2023-6856 | 8.8 | 11.0% | — |
| CVE-2017-7786 | 9.8 | 8.5% | — |
| CVE-2018-18498 | 9.8 | 7.8% | — |
| CVE-2020-6831 | 9.8 | 6.3% | — |
| CVE-2022-2200 | 8.8 | 6.2% | — |
| CVE-2018-12393 | 7.5 | 5.8% | — |
| CVE-2022-28282 | 6.5 | 5.3% | — |
| CVE-2017-7784 | 9.8 | 5.2% | — |
| CVE-2018-18501 | 9.8 | 4.6% | — |
| CVE-2019-17022 | 6.1 | 4.6% | — |
| CVE-2022-1529 | 8.8 | 4.3% | — |
3
/ 100
low-risk
Active Threat
3/50 · Minimal
Exploit Availability
0/50 · Minimal
Score uses Wilson score intervals to account for sample size. Products with few CVEs are scored conservatively.