What’s Vulnerable › Vulnerabilities

CVE-2001-1088

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 19.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2002-06-25 · updated 2026-06-16

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.

Affected products

• Microsoft Outlook: 97, 98, 2000
• Microsoft Outlook Express: 4.0, 4.5, 4.27.3110, 4.72.2106, 4.72.3120.0, 4.72.3612 (+2)

References

• http://support.microsoft.com/default.aspx?scid=kb%3BEN-US%3Bq234241
• http://www.securityfocus.com/archive/1/188752
• http://www.securityfocus.com/bid/2823
• https://exchange.xforce.ibmcloud.com/vulnerabilities/6655
• http://support.microsoft.com/default.aspx?scid=kb%3BEN-US%3Bq234241
• http://www.securityfocus.com/archive/1/188752
• http://www.securityfocus.com/bid/2823
• https://exchange.xforce.ibmcloud.com/vulnerabilities/6655

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