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CVE-2000-0621

7.5 · HIGH

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, ak…

Published Jul 20, 2000microsoftEPSS 22.14%

Overview

CVE-2000-0621 is a high-severity vulnerability affecting microsoft outlook. It was published on July 20, 2000 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update outlook to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refwww.cert.org/advisories/CA-2000-14.htmlRefwww.securityfocus.com/bid/1501Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-046Refexchange.xforce.ibmcloud.com/vulnerabilities/5013Refwww.cert.org/advisories/CA-2000-14.htmlRefwww.securityfocus.com/bid/1501Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-046Refexchange.xforce.ibmcloud.com/vulnerabilities/5013

How CyberStrike helps

Frequently asked questions

What is CVE-2000-0621?

CVE-2000-0621 is a high-severity vulnerability affecting microsoft outlook. It was published on July 20, 2000 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2000-0621?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2000-0621?

Check the references section for vendor advisories and patches from microsoft. Update outlook to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2000-0621?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2000-0621 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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