Solr
by Apache
Take action — actively targeted
Solr is actively targeted by attackers. A significant proportion of its known vulnerabilities are being exploited.
What to do
- Apply all available updates immediately
- Review your exposure — is this internet-facing?
- Monitor vendor advisories for this product
What Attackers Target
Vulnerabilities with high exploit probability
45.0%
Confirmed actively exploited (CISA)
7.5%
Public exploit code available
5.0%
Based on 40 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-2019-17558 | 7.5 | 94.5% | Yes |
| CVE-2023-44487 | 7.5 | 94.4% | Yes |
| CVE-2024-45216 | 9.8 | 94.1% | — |
| CVE-2021-27905 | 9.8 | 93.9% | — |
| CVE-2017-12629 | 9.8 | 93.9% | — |
| CVE-2019-0192 | 9.8 | 93.5% | — |
| CVE-2019-0193 | 7.2 | 93.4% | Yes |
| CVE-2023-50290 | 6.5 | 92.9% | — |
| CVE-2020-13957 | 9.8 | 84.8% | — |
| CVE-2023-50386 | 8.8 | 84.7% | — |
| CVE-2019-12409 | 9.8 | 82.8% | — |
| CVE-2017-3164 | 7.5 | 59.5% | — |
| CVE-2023-50292 | 7.5 | 40.1% | — |
| CVE-2020-27223 | 5.2 | 33.8% | — |
| CVE-2019-12401 | 7.5 | 32.8% | — |
| CVE-2021-29262 | 7.5 | 26.2% | — |
| CVE-2017-3163 | 7.5 | 16.4% | — |
| CVE-2024-52012 | 5.4 | 13.5% | — |
| CVE-2021-29943 | 9.1 | 7.7% | — |
| CVE-2021-44548 | 9.8 | 6.7% | — |
56
/ 100
high-risk
Active Threat
50/50 · Critical
Exploit Availability
6/50 · Minimal
Score uses Wilson score intervals to account for sample size. Products with few CVEs are scored conservatively.