🛡️ CVE-2024-1300 — vertx-core

🟡 CVSS 5.4 — Medium ✅ No Known Exploit CWE-400 NVD
5.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Eclipse Vert.x vulnerable to a memory leak in TCP servers

A vulnerability in the Eclipse Vert.x toolkit causes a memory leak in TCP servers configured with TLS and SNI support. When processing an unknown SNI server name assigned the default certificate instead of a mapped certificate, the SSL context is erroneously cached in the server name map, leading to memory exhaustion. This flaw allows attackers to send TLS client hello messages with fake server names, triggering a JVM out-of-memory error.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability low.

Weakness class

CVE-2024-1300 is classified as CWE-400: Uncontrolled Resource Consumption. A request can consume memory, CPU or storage without limit, exhausting capacity for everyone else.

Affected software

CVE-2024-1300 is recorded against 2 packages.

  • io.vertx:vertx-core (from 4.5.0 up to 4.5.3)
  • unknown

Timeline and source

Published on 2 April 2024 and last revised on 28 February 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Web)
vertx.io (Web)
github.com (Package)
bugzilla.redhat.com (Web)
access.redhat.com (Web)
access.redhat.com (Web)
access.redhat.com (Web)
access.redhat.com (Web)
access.redhat.com (Web)
access.redhat.com (Web)

Details

Severity Medium
CVSS Score 5.4
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
CWE CWE-400
Public Exploit ✅ No
Source NVD
Published 2024-04-02
Updated 2026-08-12
Modified 2026-02-28
Fix URL N/A

Affected Packages

Software From version Fixed in
io.vertx:vertx-core 4.5.0 4.5.3
unknown

References

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