5.3

CVE-2024-49214: haproxy-2.4 Authentication Bypass by Spoofing

CVSS: 5.3v3.1MediumDeferred
AliasesDEBIAN-CVE-2024-49214openSUSE-SU-2024:14402-1CGA-2rm2-f543-r75c
Published 14-10-2024Last modified 29-10-2024
Open JSON

Vulnerability summary

CVE-2024-49214 is a medium (CVSS 5.3) Authentication Bypass by Spoofing vulnerability in haproxy-2.4. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 43.2% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.52%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 2
CGA-2354-5PPC-3WQQUBUNTU-CVE-2024-49214

Timeline

  1. 14-10-2024
    PublishedVulnerability first disclosed.
  2. 29-10-2024
    Last modifiedVulnerability information updated.

Description

QUIC in HAProxy 3.1.x before 3.1-dev7, 3.0.x before 3.0.5, and 2.9.x before 2.9.11 allows opening a 0-RTT session with a spoofed IP address. This can bypass the IP allow/block list functionality.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.52%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

0.00 pp

From 0.52% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard4 products
  • haproxy-2.4All versions (No fix recorded)
  • haproxy-2.6All versions (No fix recorded)
  • haproxy-2.8All versions (No fix recorded)
  • haproxy-3.0< 3.0.5-r0
Debian1 product
  • haproxyAll versions (No fix recorded) | < 2.9.11-1
Opensuse1 product
  • haproxy&distro=openSUSE Tumbleweed< 3.0.5+git0.8e879a52e-2.1

3 vendors · 6 products

References

12 links
Show all 12 references