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Progressive Robot Ltd

Records42All Threatist records
Exploited (KEV)0None in CISA KEV
CVSS critical1CVSS 9.0–10.0
CVSS high19CVSS 7.0–8.9

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Progressive Robot Ltd records in CISA KEV

No Progressive Robot Ltd vulnerabilities are listed in CISA KEV.

Records

42 records

Priority MEDIUM 52

Eval injection in the JScript event-script dispatcher in Progressive Robot Ltd's hMailServer, versions 6.0.0 through 6.3.3 on Windows, allows a remote, unauthenticated attacker to run arbitrary JScript inside the hMailSe…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.01731 Published 2026-09-27 Fixed in 6.3.4 CWE-95
Priority LOW 39

Unchecked input for a loop condition in Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to stop the server carrying mail.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00372 Published 2026-10-19 No fix listed CWE-606
Priority LOW 39

Inefficient algorithmic complexity in the bounce and complaint processing of Progressive Robot hMailServer 6.3.4 and 6.3.5 allows a remote unauthenticated attacker to stop mail delivery by sending messages, when bounce p…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00347 Published 2026-10-08 Fixed in 6.3.6 CWE-407
Priority LOW 39

Inefficient algorithmic complexity and a non-terminating loop in the MIME processing of received messages in Progressive Robot hMailServer 6.0.0 through 6.3.5 allow a remote unauthenticated attacker to make the mail serv…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00428 Published 2026-10-08 Fixed in 6.3.6 CWE-835
Priority LOW 39

Inefficient algorithmic complexity in the inbound DKIM and ARC signature verification of Progressive Robot hMailServer 6.0.0 through 6.3.5 allows a remote unauthenticated attacker to make the mail services unavailable by…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00428 Published 2026-10-08 Fixed in 6.3.6 CWE-407
Priority LOW 39

Inefficient algorithmic complexity in the JSON reader of Progressive Robot hMailServer allows a remote unauthenticated attacker to make the mail services unavailable.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00428 Published 2026-10-08 Fixed in 6.3.6 CWE-407
Priority LOW 38

Use of a less trusted source in the DKIM signing of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to have mail they write signed with the DKIM key of a domain the server hosts…

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00166 Published 2026-10-19 No fix listed CWE-348
Priority LOW 38

Missing network timeouts in the Linux builds of Progressive Robot hMailServer 6.3.0 through 6.3.5 allow a remote attacker to hold server threads indefinitely and so stop outbound mail delivery (denial of service).

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.0027 Published 2026-10-08 Fixed in 6.3.6 CWE-1088
TI-2026-78887 CVE-2026-114489 · GHSA-4mcr-893f-mcpr

Missing Authorization in hMailServer

Priority LOW 37

Missing authorization in the REST and COM administration APIs of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote authenticated user whose credential is confined to named domains to change mail routing a…

CVSS 3.1HIGH 8.1 Network Low privileges No interaction EPSS 0.00272 Published 2026-10-21 No fix listed CWE-862
Priority LOW 36

Cross-site scripting in the webmail of Progressive Robot hMailServer 6.3.2 through 6.3.5 allows a remote attacker who can send a user an encrypted message to run script in the webmail's origin with that user's session.

CVSS 3.1HIGH 8.0 Network No auth User interaction EPSS 0.00247 Published 2026-10-08 Fixed in 6.3.6 CWE-79
Priority LOW 35

Incorrect authorization in the COM administration API of Progressive Robot hMailServer 6.3.4 through 6.3.6 allows an account assigned the serveradmin role with a list of domains - a credential an administrator may create…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00108 Published 2026-10-21 No fix listed CWE-863
Priority LOW 35

Incorrect authorization in the REST administration API of Progressive Robot hMailServer 6.3.4 through 6.3.6 allows a remote authenticated user whose credential holds the manage_roles permission in named domains - a full-…

CVSS 3.1HIGH 7.5 Network Low privileges No interaction EPSS 0.00274 Published 2026-10-21 No fix listed CWE-863
Priority LOW 35

Incorrect default permissions in the Windows installer of Progressive Robot hMailServer 6.0.0 through 6.3.6 allow a local authenticated user to run code as the mail server's high-privileged accounts when the product is i…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00102 Published 2026-10-19 No fix listed CWE-276
Priority LOW 35

Incorrect default permissions in the Windows installer of Progressive Robot hMailServer 6.0.0 through 6.3.5 allow a local authenticated user to read the mail server's data.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00102 Published 2026-10-08 Fixed in 6.3.6 CWE-276
Priority LOW 35

Missing authorization on COM objects in Progressive Robot hMailServer 6.0.0 through 6.3.5 (Windows only) lets a local interactive user with no hMailServer credential read and write arbitrary files as the service account…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00107 Published 2026-10-08 Fixed in 6.3.6 CWE-862
Priority LOW 35

The Linux live-update apply helper (hmailserver-update) of Progressive Robot hMailServer 6.3.4 and 6.3.5 runs as root on a request file written by the unprivileged hmailserver service account, and took from that request…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00114 Published 2026-10-08 Fixed in 6.3.6 CWE-807
Priority LOW 35

Heap-based buffer overflow in the legacy Blowfish decryption routine (BlowFishEncryptor::DecryptFromString) in Progressive Robot hMailServer 6.0.0 through 6.3.3 on Windows allows a local interactive user with no hMailSer…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00162 Published 2026-10-08 Fixed in 6.3.4 CWE-122
Priority LOW 34

Missing Host header validation and missing throttling of failed administrator sign-ins in the REST API listener of Progressive Robot hMailServer 6.0.0 through 6.3.5 allow a remote attacker to brute-force the server admin…

CVSS 3.1HIGH 7.5 Network No auth User interaction EPSS 0.00143 Published 2026-10-08 Fixed in 6.3.6 CWE-346
Priority LOW 33

Progressive Robot hMailServer 6.0.0 through 6.3.5 fails open when applying DANE (RFC 7672) to outbound SMTP delivery.

CVSS 3.1HIGH 7.4 Network No auth No interaction EPSS 0.00151 Published 2026-10-08 Fixed in 6.3.6 CWE-636
Priority LOW 33

Progressive Robot hMailServer 6.0.0 through 6.3.5 does not enforce TLS for outbound SMTP delivery to a mail exchanger whose DNSSEC-validated TLSA records contain no DANE-EE (usage 3) record, contrary to RFC 7672 section…

CVSS 3.1HIGH 7.4 Network No auth No interaction EPSS 0.0015 Published 2026-10-08 Fixed in 6.3.6 CWE-319
Priority LOW 32

Not failing securely in the anti-virus attachment-stripping action of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a remote unauthenticated attacker to have a message that the server's virus scanner found inf…

CVSS 3.1MEDIUM 5.8 Network No auth No interaction EPSS 0.00321 Published 2026-10-21 No fix listed CWE-636
Priority LOW 30

Uncontrolled eviction in the pending sign-in tables of the REST API in Progressive Robot hMailServer 6.3.4 and 6.3.5 allows a remote unauthenticated attacker to make other users' OpenID Connect, SAML and passkey sign-ins…

CVSS 3.1MEDIUM 5.3 Network No auth No interaction EPSS 0.00448 Published 2026-10-08 Fixed in 6.3.6 CWE-770
Priority LOW 30

Improper link resolution and external control of file paths in the administrative command-line operations of hMailServer.exe in Progressive Robot hMailServer 6.3.4 and 6.3.5 allow a local attacker who already runs code a…

CVSS 3.1MEDIUM 6.7 Local Low privileges User interaction EPSS 0.00073 Published 2026-10-08 Fixed in 6.3.6 CWE-59
Priority LOW 30

Inefficient algorithmic complexity in the SPF macro expansion of Progressive Robot hMailServer 6.3.4 and 6.3.5 allows a remote unauthenticated attacker to consume worker-thread time by publishing a crafted SPF record.

CVSS 3.1MEDIUM 5.3 Network No auth No interaction EPSS 0.00387 Published 2026-10-08 Fixed in 6.3.6 CWE-407
Priority LOW 29

Inefficient complexity in the Sieve filter evaluation of Progressive Robot hMailServer 6.2.24 through 6.3.5 allows an authenticated account holder to make the mail services unavailable with their own filter.

CVSS 3.1MEDIUM 6.5 Network Low privileges No interaction EPSS 0.00307 Published 2026-10-08 Fixed in 6.3.6 CWE-1333
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