CVE-2003-0487
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 11.37% probability · 96th percentile
- Public exploits
- 5 in Exploit-DB · verified · first 18 June 2003
- CISA KEV
- Not listed
- Affected
- kerio/kerio mailserver
- Source
- cve@mitre.org
EPSS 11.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (5)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
| EDB-ID | Title | Type | Published | Verified |
|---|---|---|---|---|
| EDB-46source ↗ | Kerio MailServer 5.6.3 - Remote Buffer Overflowlinux · B-r00t | remote | 27 June 2003 | yes |
| EDB-22803source ↗ | Kerio MailServer 5.6.3 do_map Module - Overflowlinux · David F.Madrid | dos | 18 June 2003 | yes |
| EDB-22802source ↗ | Kerio MailServer 5.6.3 list Module - Overflowlinux · David F.Madrid | dos | 18 June 2003 | yes |
| EDB-22801source ↗ | Kerio MailServer 5.6.3 add_acl Module - Overflowlinux · David F.Madrid | dos | 18 June 2003 | yes |
| EDB-22800source ↗ | Kerio MailServer 5.6.3 subscribe Module - Overflowlinux · David F.Madrid | dos | 18 June 2003 | yes |
References
- http://marc.info/?l=bugtraq&m=105596982503760&w=2
- http://nautopia.org/vulnerabilidades/kerio_mailserver.htmExploit, Vendor Advisory
- http://www.securityfocus.com/bid/7967Exploit, Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/12368
- http://marc.info/?l=bugtraq&m=105596982503760&w=2
- http://nautopia.org/vulnerabilidades/kerio_mailserver.htmExploit, Vendor Advisory
- http://www.securityfocus.com/bid/7967Exploit, Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/12368
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.