5.3

CVE-2026-21755: hclsoftware hcl hive

CVSS: 5.3v3.1MediumDeferred
Published 24-08-2026Last modified 24-08-2026
Open JSON

Vulnerability summary

CVE-2026-21755 is a medium (CVSS 5.3) vulnerability in hclsoftware hcl hive. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.21%
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. 24-08-2026
    PublishedVulnerability first disclosed.
  2. 24-08-2026
    Last modifiedVulnerability information updated.

Description

HCL Hive is affected by a missing rate limit which could allow an attacker unauthorized access via brute-force or credential stuffing attacks, or cause a denial of service.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

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

1 vendor · 1 product

References

1 links