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Vulnerability Intelligence

CVE-2007-4607

CriticalPublic exploit

Buffer overflow in the EasyMailSMTPObj ActiveX control in emsmtp.dll 6.0.1 in the Quiksoft EasyMail SMTP Object, as used in Postcast Server Pro 3.0.61 and other products, allows remote attackers to execute arbitrary code via a long argument to the SubmitToExpress method, a…

Published Aug 30, 2007 · Updated Apr 22, 2026

Key Facts

Patch immediately
  • CVE-2007-4607 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Postcast Server Pro (Gate Comm Software), Easymail Objects (Quicksoft).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 56% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

56%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

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Description

Buffer overflow in the EasyMailSMTPObj ActiveX control in emsmtp.dll 6.0.1 in the Quiksoft EasyMail SMTP Object, as used in Postcast Server Pro 3.0.61 and other products, allows remote attackers to execute arbitrary code via a long argument to the SubmitToExpress method, a different vulnerability than CVE-2007-1029. NOTE: this may have been fixed in version 6.0.3.15.

Affected Products

2 affected entries in total
ProductAffected versionsFixed in
Postcast Server ProGate Comm Software3.0.61n/a
Easymail ObjectsQuicksoftSee advisoryn/a

Timeline

  1. Publicly disclosed

    Aug 30, 2007

  2. Last updated

    Apr 22, 2026

Weakness Type

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

7 more references in the full CVE brief

FAQ

Common Questions.

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