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Application Delivery / ADC · head-to-head

F5 vs HAProxy

L4-L7 load balancers, ADCs and reverse proxies. Counts are scoped to this segment and the selected published-date window. F5 carries 24.5× 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.

01

Disclosure record

Bars are normalized per row to the larger value; the leading count is emphasized.

Metric comparison: F5 versus HAProxy. Each row gives the metric, F5’s count on the left and HAProxy’s count on the right.
F5MetricHAProxy
98Total CVEs4
2Critical0
56High3
36Medium1
4Low0
322Open in latest14
02

Risk profile

Each severity band as a share of the vendor's own total — strips out raw volume so the profiles compare directly.

F5

2.0% critical
Critical
22.0%
High
5657.1%
Medium
3636.7%
Low
44.1%

HAProxy

0.0% critical
Critical
00.0%
High
375.0%
Medium
125.0%
Low
00.0%
03

Recent activity

Latest in-window disclosures per vendor, newest first. Each ID links to its NVD record.

F5

Recent CVEs affecting F5
CVESeverityCVSSPublished
CVE-2026-48142(opens NVD record)Medium
4.8
Jun 17, 2026
CVE-2026-42530(opens NVD record)High
8.1
Jun 17, 2026
CVE-2026-42055(opens NVD record)High
8.1
Jun 17, 2026
CVE-2026-9256(opens NVD record)High
8.1
May 22, 2026
CVE-2026-42946(opens NVD record)Medium
6.5
May 13, 2026
CVE-2026-42945(opens NVD record)High
8.1
May 13, 2026

HAProxy

Recent CVEs affecting HAProxy
CVESeverityCVSSPublished
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

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