CVE-2026-56582: HCL MyCloud was affected by the SSL/TLS LUCKY13 Vulnerability

Routine

LOW 3.1DOWNGRADE

CVE-2026-56582 is a low-severity flaw (CVSS 3.1) affecting dryice mycloud. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HCL MyCloud was affected by the SSL/TLS LUCKY13 Vulnerability. An attacker may exploit this vulnerability to decrypt sensitive information through a TLS/SSL padding oracle attack.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.1 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 96%)
CISA exploited list	No
Weakness	CWE-327
Published	2026-07-21
Last modified	2026-10-24

Publisher (CNA): HCL Software · Vendor: hcltech

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-21 18:17 UTCPublished CVE record published
2026-10-24 19:10 UTCUpdated Record last modified

hcltech dryice mycloud DOWNGRADE

Affected: 10.8.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.8.1

1. Check installed version

apt-cache policy dryice-mycloud || rpm -q dryice-mycloud || dryice-mycloud --version

2. No fixed release: DOWNGRADE to a release before 10.8.1 (Debian / Ubuntu)

apt-cache madison dryice-mycloud sudo apt install dryice-mycloud=<VERSION_BEFORE_10.8.1> sudo apt-mark hold dryice-mycloud

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list dryice-mycloud sudo dnf downgrade dryice-mycloud-<VERSION_BEFORE_10.8.1> sudo dnf versionlock add dryice-mycloud

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-56582?

dryice mycloud: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-56582 being exploited?

CVE-2026-56582 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-56582 affect?

CVE-2026-56582 affects dryice mycloud. Severity is low (CVSS 3.1). HCL MyCloud was affected by the SSL/TLS LUCKY13 Vulnerability. An attacker may exploit this vulnerability to decrypt sensitive information through a TLS/SSL padding oracle attack.

How urgent is CVE-2026-56582?

Priority 12/100. No elevated risk signals yet.

Related CVEs

CVE-2026-56577 LOW 3.1 DOWNGRADE HCL MyCloud was affected with Weak Password Policy
CVE-2026-56579 LOW 3.1 DOWNGRADE HCL MyCloud was affected with License Key Revealed in HTTP Response
CVE-2026-56583 LOW 3.1 DOWNGRADE HCL MyCloud was affected with Concurrent Login Vulnerability
CVE-2026-56580 LOW 2.2 DOWNGRADE HCL MyCloud was affected by Using Components with Known Vulnerability ( IIS Server )
CVE-2026-56578 LOW 2.2 DOWNGRADE HCL MyCloud was affected by Server Version Disclosure

References

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