3.1

CVE-2026-56583: hclsoftware mycloud Insufficient Session Expiration

CVSS: 3.1v3.1LowAnalyzed
Published 21-07-2026Last modified 22-07-2026
Open JSON

Vulnerability summary

CVE-2026-56583 is a low (CVSS 3.1) Insufficient Session Expiration vulnerability in hclsoftware mycloud. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.8% of scored vulnerabilities.

Overall risk
12/100
0100
Low · default modelHow is this calculated?
CVSS score
3.1/10
010
Low · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-07-2026
    PublishedVulnerability first disclosed.
  2. 22-07-2026
    Last modifiedVulnerability information updated.

Description

HCL MyCloud was affected with Concurrent Login Vulnerability. It may increase the risk of unauthorized access, session hijacking, and account misuse.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.22%

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

Hclsoftware1 product
Hcltech1 product

2 vendors · 2 products

References

1 links