CVE-2024-23556Network attack vector

Service interruption via unrestricted TLS renegotiation

Published May 17, 2024 · Updated Oct 27, 2024

Denial of service in HCL BigFix Platform 9.5 through 9.5.24, 10.0.0 through 10.0.11, and 11.0.1 allows remote attackers to interrupt service. The published advisory identifies unrestricted SSL/TLS renegotiation but does not disclose the affected component or resource-exhaustion path. The attack is unauthenticated over the network, requires high complexity, and affects availability without reported data exposure or modification.

CVSS severity5.9
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in HCL BigFix Platform 9.5 through 9.5.24, 10.0.0 through 10.0.11, and 11.0.1 allows remote attackers to interrupt service. The published advisory identifies unrestricted SSL/TLS renegotiation but does not disclose the affected component or resource-exhaustion path. The attack is unauthenticated over the network, requires high complexity, and affects availability without reported data exposure or modification.

The record

CVE
CVE-2024-23556
Published
May 17, 2024
Updated
Oct 27, 2024
Vendor
HCLSoftware
Product
HCL BigFix Platform
Classifications
T1499.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.0 <=10.0.11
  2. Affected versionversion=11.0.1
  3. Affected versionversion=9.5 <=9.5.24
  4. Affected versionversion=9.5 - 9.5.24, 10 - 10.0.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCLSoftware · HCL BigFix Platformversion=10.0.0 <=10.0.11; version=11.0.1; version=9.5 <=9.5.24; version=9.5 - 9.5.24, 10 - 10.0.11

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9HCL SoftwareCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.002Service Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo