CVE-2007-6573
QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long ...
QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long (1) HELO, (2) MAIL FROM, or (3) RCPT TO command; or (4) a long string in the message sent after the DATA command; possibly a related issue to CVE-2006-5551.
Exploit likelihood
What each source reports
NVD Score used
QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long (1) HELO, (2) MAIL FROM, or (3) RCPT TO command; or (4) a long string in the message sent after the DATA command; possibly a related issue to CVE-2006-5551.
- Record
CVE-2007-6573- CVSS 2.0
- 7.8 High
AV:N/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long (1) HELO, (2) MAIL FROM, or (3) RCPT TO command; or (4) a long string in the message sent after the DATA command; possibly a related issue to CVE-2006-5551.
- Record
CVE-2007-6573- Updated
- 2026-11-02
EUVDEUVD-2007-6539 No score
QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long (1) HELO, (2) MAIL FROM, or (3) RCPT TO command; or (4) a long string in the message sent after the DATA command; possibly a related issue to CVE-2006-5551.
- Record
EUVD-2007-6539- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-phxv-6mj6-69g6 No score
QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long ...
QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long (1) HELO, (2) MAIL FROM, or (3) RCPT TO command; or (4) a long string in the message sent after the DATA command; possibly a related issue to CVE-2006-5551.
- Record
GHSA-phxv-6mj6-69g6- Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| aliases, references, title | GitHub Advisories | |
| first indexed | CVE List, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2007-6573 is a high vulnerability (CVSS 7.8) in Qksoft Qk Smtp Server 3, published December 28, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.61%, the 76th percentile. No source names a fixed version.