CVE-2003-0487
Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a...
Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via (1) a long showuser parameter in the do_subscribe module, (2) a long folder parameter in the add_acl module, (3) a long folder parameter in the list module, and (4) a long user parameter in the do_map module.
Exploit likelihood
What each source reports
NVD Score used
Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via (1) a long showuser parameter in the do_subscribe module, (2) a long folder parameter in the add_acl module, (3) a long folder parameter in the list module, and (4) a long user parameter in the do_map module.
- Record
CVE-2003-0487- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via (1) a long showuser parameter in the do_subscribe module, (2) a long folder parameter in the add_acl module, (3) a long folder parameter in the list module, and (4) a long user parameter in the do_map module.
- Record
CVE-2003-0487- Updated
- 2026-11-02
EUVDEUVD-2003-0481 No score
Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via (1) a long showuser parameter in the do_subscribe module, (2) a long folder parameter in the add_acl module, (3) a long folder parameter in the list module, and (4) a long user parameter in the do_map module.
- Record
EUVD-2003-0481- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v352-gc7j-mw97 No score
Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a...
Multiple buffer overflows in Kerio MailServer 5.6.3 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via (1) a long showuser parameter in the do_subscribe module, (2) a long folder parameter in the add_acl module, (3) a long folder parameter in the list module, and (4) a long user parameter in the do_map module.
- Record
GHSA-v352-gc7j-mw97- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Kerio MailServer 5.6.3 subscribe Module - Overflow | 2003-06-18 |
| Exploit-DB | Kerio MailServer 5.6.3 add_acl Module - Overflow | 2003-06-18 |
| Exploit-DB | Kerio MailServer 5.6.3 list Module - Overflow | 2003-06-18 |
| Exploit-DB | Kerio MailServer 5.6.3 do_map Module - Overflow | 2003-06-18 |
| Exploit-DB | Kerio MailServer 5.6.3 - Remote Buffer Overflow | 2003-06-27 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2003-0487 is a high vulnerability (CVSS 7.5) in Kerio Mailserver, published June 28, 2003. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 11.4%, the 96th percentile. No source names a fixed version.