What’s Vulnerable › Vulnerabilities

CVE-2000-0621

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 22.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2000-07-20 · updated 2026-06-16

Description

Microsoft Outlook 98 and 2000, and Outlook Express 4.0x and 5.0x, allow remote attackers to read files on the client's system via a malformed HTML message that stores files outside of the cache, aka the "Cache Bypass" vulnerability.

Affected products

• Microsoft Outlook: 97, 98, 2000
• Microsoft Outlook Express: 4.0, 4.01, 5.0, 5.0.1

References

• http://www.cert.org/advisories/CA-2000-14.html
• http://www.securityfocus.com/bid/1501
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-046
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5013
• http://www.cert.org/advisories/CA-2000-14.html
• http://www.securityfocus.com/bid/1501
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-046
• https://exchange.xforce.ibmcloud.com/vulnerabilities/5013

Get alerted when CVE-2000-0621 or the next vulnerability affects your stack