Application Delivery / ADC · head-to-head
HAProxy vs Progress (Kemp LoadMaster)
L4-L7 load balancers, ADCs and reverse proxies. Counts are scoped to this segment and the selected published-date window. Progress (Kemp LoadMaster) carries 1.3× the disclosed CVE volume of HAProxy. Volume reflects disclosure practice and install base as much as code quality — read it with the severity mix. Sourced from the NIST NVD; lower counts indicate a smaller disclosed vulnerability surface — not necessarily lower risk.
Disclosure record
Bars are normalized per row to the larger value; the leading count is emphasized.
| HAProxy | Metric | Progress (Kemp LoadMaster) | ||
|---|---|---|---|---|
| 16 | Total CVEs | 20 | ||
| 1 | Critical | 2 | ||
| 12 | High | 16 | ||
| 3 | Medium | 2 | ||
| 0 | Low | 0 | ||
| 14 | Open in latest | 4 |
Risk profile
Each severity band as a share of the vendor's own total — strips out raw volume so the profiles compare directly.
HAProxy
6.3% critical- Critical
- 16.3%
- High
- 1275.0%
- Medium
- 318.8%
- Low
- 00.0%
Progress (Kemp LoadMaster)
10.0% critical- Critical
- 210.0%
- High
- 1680.0%
- Medium
- 210.0%
- Low
- 00.0%
Recent activity
Latest in-window disclosures per vendor, newest first. Each ID links to its NVD record.
HAProxy
| CVE | Severity | CVSS | Published |
|---|---|---|---|
| CVE-2026-55204(opens NVD record) | High | 7.5 | Jun 18, 2026 |
| CVE-2026-55203(opens NVD record) | High | 7.5 | Jun 18, 2026 |
| CVE-2026-33555(opens NVD record) | Medium | 4.0 | Apr 13, 2026 |
| CVE-2025-11230(opens NVD record) | High | 7.5 | Nov 19, 2025 |
| CVE-2024-45506(opens NVD record) | High | 7.5 | Sep 4, 2024 |
| CVE-2023-45539(opens NVD record) | High | 8.2 | Nov 28, 2023 |
Progress (Kemp LoadMaster)
| CVE | Severity | CVSS | Published |
|---|---|---|---|
| CVE-2026-4048(opens NVD record) | High | 8.4 | Apr 20, 2026 |
| CVE-2026-3519(opens NVD record) | High | 8.4 | Apr 20, 2026 |
| CVE-2026-3518(opens NVD record) | High | 8.4 | Apr 20, 2026 |
| CVE-2026-3517(opens NVD record) | High | 8.4 | Apr 20, 2026 |
| CVE-2025-13447(opens NVD record) | High | 8.4 | Jan 13, 2026 |
| CVE-2025-13444(opens NVD record) | High | 8.4 | Jan 13, 2026 |
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