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CVE-2001-1088

7.5 · HIGH

Microsoft Outlook 8.5 and earlier, and Outlook Express 5 and earlier, with the "Automatically put people I reply to in my address book" option enabled, do not notify the user when the "Reply-To" ad…

Published Jun 5, 2001microsoftEPSS 19.71%

Overview

CVE-2001-1088 is a high-severity vulnerability affecting microsoft outlook. It was published on June 5, 2001 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 8.5 and earlier, and Outlook Express 5 and earlier, with the "Automatically put people I reply to in my address book" option enabled, do not notify the user when the "Reply-To" address is different than the "From" address, which could allow an untrusted remote attacker to spoof legitimate addresses and intercept email from the client that is intended for another user.

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

Refsupport.microsoft.com/default.aspx?scid=kb%3BEN-US%3Bq234241Refwww.securityfocus.com/archive/1/188752Refwww.securityfocus.com/bid/2823Refexchange.xforce.ibmcloud.com/vulnerabilities/6655Refsupport.microsoft.com/default.aspx?scid=kb%3BEN-US%3Bq234241Refwww.securityfocus.com/archive/1/188752Refwww.securityfocus.com/bid/2823Refexchange.xforce.ibmcloud.com/vulnerabilities/6655

How CyberStrike helps

Frequently asked questions

What is CVE-2001-1088?

CVE-2001-1088 is a high-severity vulnerability affecting microsoft outlook. It was published on June 5, 2001 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2001-1088?

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-2001-1088?

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-2001-1088?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2001-1088 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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