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Vulnerability record · CVE-2003-1378 · published 31 December 2003

CVE-2003-1378: Microsoft outlook permissions and access controls vulnerability

Microsoft · Outlook

Microsoft Outlook Express 6.0 and Outlook 2000, with the security zone set to Internet Zone, allows remote attackers to execute arbitrary programs via an HTML email with the CODEBASE parameter set to the program, a vulnerability similar to CAN-2002-0077.

8.8 CVSS 2.0 High EPSS 16% · top 3.3% CWE-264 · Permissions and access controls
8.8CVSS 2.0 base score
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Microsoft Outlook Express 6.0 and Outlook 2000, with the security zone set to Internet Zone, allows remote attackers to execute arbitrary programs via an HTML email with the CODEBASE parameter set to the program, a vulnerability similar to CAN-2002-0077.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/archive/1/312910 Exploit
http://www.securityfocus.com/archive/1/312929
http://www.securityfocus.com/bid/6923 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/11411
http://www.securityfocus.com/archive/1/312910 Exploit
http://www.securityfocus.com/archive/1/312929
http://www.securityfocus.com/bid/6923 Exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/11411

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Related vulnerabilities

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

9.8CVE-2023-23397Microsoft Outlook improper input validation privilege escalationCVE-2023-23397 is a critical elevation of privilege flaw in Microsoft Outlook caused by improper input validation and an authentication bypass by cap…KEVEPSS 97%analysed8.8CVE-2023-35311Microsoft Outlook security feature bypass via TOCTOU race conditionCVE-2023-35311 is a security feature bypass in Microsoft Outlook caused by a time-of-check time-of-use (TOCTOU) race condition (CWE-367). It affects …KEVEPSS 16%analysed8.8CVE-2007-0671Microsoft Excel remote code execution via malformed fileCVE-2007-0671 is an unspecified vulnerability in Microsoft Excel 2000, XP, 2003, and 2004 for Mac, and possibly other Office products, that allows re…KEVEPSS 43%analysed7.8CVE-2017-11774Microsoft Outlook memory handling flaw allows arbitrary command executionMicrosoft Outlook 2010 SP2, 2013 SP1/RT SP1 and 2016 mishandle objects in memory, letting an attacker bypass Outlook security features and execute ar…KEVEPSS 60%analysed7.8CVE-2015-1641Microsoft Office Word RTF out-of-bounds write memory corruptionMicrosoft Word and related Office components (Word 2007/2010/2013, Word for Mac 2011, Office Compatibility Pack, Word Automation Services, Office Web…KEVEPSS 97%analysed10.0CVE-2004-0380Outlook Express MHTML handler domain bypass leads to code executionThe MHTML protocol handler in Microsoft Outlook Express 5.5 SP2 through 6 SP1 fails to enforce domain restrictions, letting remote attackers bypass s…EPSS 63%analysed10.0CVE-2001-0538Microsoft Outlook View ActiveX Control allows remote command executionThe Outlook View ActiveX Control in Microsoft Outlook 2002 and earlier fails to properly restrict how it is invoked, so a malicious HTML e-mail or we…EPSS 53%analysed10.0CVE-1999-0967Microsoft internet explorer vulnerabilityBuffer overflow in the HTML library used by Internet Explorer, Outlook Express, and Windows Explorer via the res: local resource protocol.EPSS 6.9%

Source: NIST National Vulnerability Database (record CVE-2003-1378), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.