Vulnerability in Haproxy
CVE-2024-45506
HAProxy 2.9.x before 2.9.10, 3.0.x before 3.0.4, and 3.1.x through 3.1-dev6 allows a remote denial of service for HTTP/2 zero-copy forwarding (h2_send loop) under a certain set of conditions, as exploited in the wild in 2024.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Haproxy — versions 3.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.haproxy.org/ (Product)
- www.haproxy.org/download/3.1/src/CHANGELOG (Release Notes)
- www.mail-archive.com/haproxy@formilux.org/msg45281.html (Release Notes)
- www.mail-archive.com/haproxy@formilux.org/msg45280.html (Release Notes)
- git.haproxy.org/ (Broken Link)
- git.haproxy.org/ (Broken Link)
Frequently asked questions
- What is CVE-2024-45506?
- CVE-2024-45506 is a high-severity vulnerability in Haproxy, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2024-09-04.
- How severe is CVE-2024-45506?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-45506 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.