TI-2007-04300 Aliases CVE-2007-4440 GHSA-4pc6-hw3m-wcr4

Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System…

HIGH 69CWE-119Published 2007-08-21 · Updated 2024-08-07

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: Partial · Partial · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.

Why it matters now

EPSS 0.64513 99th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:pmail:mercury_mail_transport_system::::::::	up to 4.51	Vulnerable	Pmail

cpe:2.3:a:pmail:mercury_mail_transport_system:*:*:*:*:*:*:*:* Versions up to 4.51 Vulnerable ·Pmail

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2007-4440
2026-10-03 Alias added: GHSA-4pc6-hw3m-wcr4

References

Exploit 1

4294

Advisory 1

ADV-2007-2918

Other 2

TI-2007-01316 Stack-based buffer overflow in Mercury/32 (aka Mercury Mail Transport System) 4.01b and… CVSS 2.0HIGH 10.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences