CVE-2026-56609Network attack vector

Data exposure and alteration via legacy TLS

Published Aug 3, 2026 · Updated Aug 3, 2026

Weak transport encryption in HCL iControl 3.2.0 allows remote attackers to read or alter data in transit via legacy TLS connections. The application's TLS endpoint accepts TLS 1.0 and TLS 1.1, negotiating obsolete protocols whose known weaknesses undermine confidentiality and integrity. Exploitation is unauthenticated and remote, but requires a client connection using one of those protocols and attack conditions suitable for compromising it.

CVSS severity6.5
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak transport encryption in HCL iControl 3.2.0 allows remote attackers to read or alter data in transit via legacy TLS connections. The application's TLS endpoint accepts TLS 1.0 and TLS 1.1, negotiating obsolete protocols whose known weaknesses undermine confidentiality and integrity. Exploitation is unauthenticated and remote, but requires a client connection using one of those protocols and attack conditions suitable for compromising it.

The record

CVE
CVE-2026-56609
Published
Aug 3, 2026
Updated
Aug 3, 2026
Vendor
HCL Software
Product
HCL iControl
Classifications
CWE-327, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=v3.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HCL Software · HCL iControlversion=v3.2.0

Published CVSS scores

4.8HCL SoftwareCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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

CWE-327Use of a Broken or Risky Cryptographic Algorithm
T1557Adversary-in-the-Middle

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

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Your stack

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