← Vulnerability feed

Vulnerability record · CVE-2003-1263 · published 31 December 2003

CVE-2003-1263: Brown bear software ical vulnerability

Brown Bear Software · Ical

ICAL.EXE in iCal 3.7 allows remote attackers to cause a denial of service (crash) via a malformed HTTP request, possibly due to an invalid method name.

5.0 CVSS 2.0 Medium EPSS 7.8% · top 5.6%
5.0CVSS 2.0 base score
7.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

ICAL.EXE in iCal 3.7 allows remote attackers to cause a denial of service (crash) via a malformed HTTP request, possibly due to an invalid method name.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2003-01/0011.html ExploitVendor Advisory
http://www.iss.net/security_center/static/10973.php
http://www.securityfocus.com/bid/6505
http://www.securityfocus.com/bid/6506 ExploitPatch
http://archives.neohapsis.com/archives/bugtraq/2003-01/0011.html ExploitVendor Advisory
http://www.iss.net/security_center/static/10973.php
http://www.securityfocus.com/bid/6505
http://www.securityfocus.com/bid/6506 ExploitPatch

Track CVE-2003-1263 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

4.3CVE-2006-0924Brown bear software ical vulnerabilityCross-site scripting (XSS) vulnerability in Brown Bear iCal 3.10 allows remote attackers to inject arbitrary web script or HTML via the Calendar Text…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2003-1263), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.