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Home
Vendors
Progressiverobot
Hmailserver

Progressive Robot Ltd hMailServer Vulnerabilities: CVEs, CISA KEV & Security Advisories

Progressive Robot Ltd

25 CVEs

PR

Progressive Robot Ltd hMailServer Vulnerabilities

CVE security advisories and vulnerability history for hMailServer by Progressive Robot Ltd.

25

Total CVEs

Published

0

In CISA KEV

Exploited in the wild

0

Public exploits

PoC or exploit code

7.0

Avg CVSS

2026–2026

Last updated October 8, 2026

Overview

Progressive Robot Ltd hMailServer has 25 published CVE records since 2026, of which 0 are in CISA's Known Exploited Vulnerabilities catalog and 0 have a known public exploit. The average CVSS base score across scored CVEs is 7.0.

Severity and exploitation

How the CVSS severity of Progressive Robot Ltd hMailServer's CVEs breaks down, plus how many are exploited in the wild or have public exploit code.

Critical1

High13

Medium11

Low0

In CISA’s Known Exploited Vulnerabilities catalog

0

None of Progressive Robot Ltd hMailServer's CVEs are currently listed in CISA's KEV catalog.

Public exploits

0

No Progressive Robot Ltd hMailServer CVEs currently have a tracked public exploit.

Affected versions and CVEs

Browse every Progressive Robot Ltd hMailServer version named in a CVE, then pick one to see only the CVEs that affect it.

Specific versions

Version ranges

6.0.0 <= v < 6.3.610 CVEs
6.3.4 <= v < 6.3.65 CVEs
6.3.2 <= v < 6.3.63 CVEs
6.0.0 <= v < 6.3.42 CVEs
6.2.28 <= v < 6.3.62 CVEs
6.2.22-pre1 <= v < 6.3.61 CVE
6.2.24 <= v < 6.3.61 CVE
6.3.0 <= v < 6.3.61 CVE

Fixed in

6.3.623 CVEs
6.3.42 CVEs
51e2dbda08d6aa7fcda5a48f1af05221809f78be1 CVE

Find a version

25 CVEs

Sort

Allocation of Resources Without Limits or Throttling in hMailServer
CVE-2026-107586
Patch
CWE-770
Medium · CVSS 4.3
EPSS 0.3% (26th pct)2026-10-08
Allocation of Resources Without Limits or Throttling in hMailServer
CVE-2026-107585
Patch
CWE-770
Medium · CVSS 5.3
EPSS 0.4% (37th pct)2026-10-08
Not Failing Securely ('Failing Open') in hMailServer
CVE-2026-107584
Patch
CWE-636
High · CVSS 7.4
EPSS 0.2% (4th pct)2026-10-08
Inefficient Algorithmic Complexity in hMailServer
CVE-2026-107583
Patch
CWE-407
Medium · CVSS 6.5
EPSS 0.3% (16th pct)2026-10-08
Improper Certificate Validation in hMailServer
CVE-2026-107587
Patch
CWE-295
Medium · CVSS 5.9
EPSS 0.2% (6th pct)2026-10-08
Inefficient Algorithmic Complexity in hMailServer
CVE-2026-107582
Patch
CWE-407
Medium · CVSS 6.5
EPSS 0.3% (16th pct)2026-10-08
Inefficient Algorithmic Complexity in hMailServer
CVE-2026-107581
Patch
CWE-407
Medium · CVSS 6.5
EPSS 0.2% (15th pct)2026-10-08
Inefficient Algorithmic Complexity in hMailServer
CVE-2026-107580
Patch
CWE-407
Medium · CVSS 6.5
EPSS 0.3% (16th pct)2026-10-08
Inefficient Algorithmic Complexity in hMailServer
CVE-2026-107579
Patch
CWE-407
High · CVSS 7.5
EPSS 0.3% (27th pct)2026-10-08
Improper Link Resolution Before File Access ('Link Following') in hMailServer
CVE-2026-107578
Patch
CWE-59
Medium · CVSS 6.7
EPSS 0.1% (0th pct)2026-10-08
Inefficient Algorithmic Complexity in hMailServer
CVE-2026-107576
Patch
CWE-407
High · CVSS 7.5
EPSS 0.4% (36th pct)2026-10-08
Loop with Unreachable Exit Condition ('Infinite Loop') in hMailServer
CVE-2026-107577
Patch
CWE-835
High · CVSS 7.5
EPSS 0.4% (36th pct)2026-10-08
Inefficient Algorithmic Complexity in hMailServer
CVE-2026-107575
Patch
CWE-407
Medium · CVSS 5.3
EPSS 0.4% (31th pct)2026-10-08
Inefficient Regular Expression Complexity in hMailServer
CVE-2026-107572
Patch
CWE-1333
Medium · CVSS 6.5
EPSS 0.3% (22th pct)2026-10-08
Incorrect Default Permissions in hMailServer
CVE-2026-107573
Patch
CWE-276
High · CVSS 7.8
EPSS 0.1% (1th pct)2026-10-08
Inefficient Algorithmic Complexity in hMailServer
CVE-2026-107574
Patch
CWE-407
High · CVSS 7.5
EPSS 0.4% (36th pct)2026-10-08
Heap-based Buffer Overflow in hMailServer
CVE-2026-103011
Patch
CWE-122
Medium · CVSS 6.5
EPSS 0.2% (11th pct)2026-10-08
Heap-based Buffer Overflow in hMailServer
CVE-2026-103010
Patch
CWE-122
High · CVSS 7.8
EPSS 0.2% (5th pct)2026-10-08
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in hMailServer
CVE-2026-103647
Patch
CWE-79
High · CVSS 8.0
EPSS 0.2% (15th pct)2026-10-08
Synchronous Access of Remote Resource without Timeout in hMailServer
CVE-2026-103649
Patch
CWE-1088
High · CVSS 7.5
EPSS 0.3% (18th pct)2026-10-08
Origin Validation Error in hMailServer
CVE-2026-104659
Patch
CWE-346
High · CVSS 7.5
EPSS 0.1% (3th pct)2026-10-08
Missing Authorization in hMailServer
CVE-2026-104660
Patch
CWE-862
High · CVSS 7.8
EPSS 0.1% (1th pct)2026-10-08
Reliance on Untrusted Inputs in a Security Decision in hMailServer
CVE-2026-104658
Patch
CWE-807
High · CVSS 7.8
EPSS 0.1% (1th pct)2026-10-08
Cleartext Transmission of Sensitive Information in hMailServer
CVE-2026-104704
Patch
CWE-319
High · CVSS 7.4
EPSS 0.1% (4th pct)2026-10-08
Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') in hMailServer
CVE-2026-100741
Patch
CWE-95
Critical · CVSS 9.8
EPSS 1.7% (77th pct)2026-09-27

Common weakness types

The CWE weakness categories most often found in Progressive Robot Ltd hMailServer CVEs. Follow any weakness for its full explanation.

CWE-407Inefficient Algorithmic Complexity8 CVEs
CWE-770Allocation of Resources Without Limits or Throttling2 CVEs
CWE-122Heap-based Buffer Overflow2 CVEs
CWE-295Improper Certificate Validation1 CVE
CWE-319Cleartext Transmission of Sensitive Information1 CVE
CWE-346Origin Validation Error1 CVE
CWE-59Improper Link Resolution Before File Access ('Link Following')1 CVE
CWE-636Not Failing Securely ('Failing Open')1 CVE

Other Progressive Robot Ltd products

Browse vulnerabilities for other products by Progressive Robot Ltd.

All Progressive Robot Ltd vulnerabilities

Frequently asked questions

Common questions about Progressive Robot Ltd hMailServer vulnerabilities.

How many CVEs does Progressive Robot Ltd hMailServer have?: Progressive Robot Ltd hMailServer has 25 published CVE records since 2026.
How many Progressive Robot Ltd hMailServer CVEs are in CISA KEV?: None of Progressive Robot Ltd hMailServer's CVEs are currently listed in CISA's Known Exploited Vulnerabilities catalog.
Are there public exploits for Progressive Robot Ltd hMailServer vulnerabilities?: No Progressive Robot Ltd hMailServer CVEs currently have a tracked public exploit in this dataset.
Which versions of Progressive Robot Ltd hMailServer are affected?: 55 distinct Progressive Robot Ltd hMailServer versions are named across its CVEs. Use the version filter above to see the CVEs affecting a specific version.
What are the most common weakness types in Progressive Robot Ltd hMailServer CVEs?: Progressive Robot Ltd hMailServer's CVEs most often map to these CWE weakness types: CWE-407 (Inefficient Algorithmic Complexity), CWE-770 (Allocation of Resources Without Limits or Throttling), CWE-122 (Heap-based Buffer Overflow), CWE-295 (Improper Certificate Validation).
How many critical Progressive Robot Ltd hMailServer vulnerabilities are there?: Progressive Robot Ltd hMailServer has 1 critical and 13 high-severity CVEs.
What is the average severity of Progressive Robot Ltd hMailServer CVEs?: The average CVSS base score across Progressive Robot Ltd hMailServer's scored CVEs is 7.0.

References

All Progressive Robot Ltd vulnerabilities
The MITRE CVE Program (opens in a new tab)
Learn: What is a CVE?
CWE directory: the weakness types these CVEs map to

Vulnerability data is sourced from the CVE Program; severity, KEV, and exploit signals are aggregated by RadicalNotion.AI.

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On this page

Overview
Severity and exploitation
Affected versions and CVEs
Common weakness types
Other products
FAQ
References