CVE-2025-32464 describes a heap-based buffer overflow vulnerability in HAProxy versions 2.2 through 3.1.6, occurring in specific configurations when replacing multiple short patterns with a longer one. This medium-severity vulnerability (CVSS 6.8) is network-exploitable with high attack complexity, potentially leading to a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.2, <= 3.1.6CPE match | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
haproxy: Buffer Overflow via Improper Back-Reference Replacement Length Check
Apr 9, 2025HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a sample_conv_regsub heap-based buffer overflow because of mishandling of the replacement of multiple short patterns with a longer one.
Apr 8, 2025