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6.4
CVE-2001-0723: Internet Explorer 5.5/6 can let attackers steal or change cookies
CVE-2001-0723 · published 24 years ago
Summary
The older Internet Explorer 5.5 and 6 browsers let a malicious website read and modify the cookies stored by a user. This can expose logins and personal data, allowing an attacker to take over accounts. Upgrade to a newer browser version or apply the latest security updates to eliminate the risk.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| microsoft | internet_explorer |
5.5 6.0 cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:* |
Original advisory text
Internet Explorer 5.5 and 6.0 allows remote attackers to read and modify user cookies via Javascript, aka the "Second Cookie Handling Vulnerability."
Internet Explorer 5.5 and 6.0 allows remote attackers to read and modify user cookies via Javascript, aka the "Second Cookie Handling Vulnerability."
References
- http://www.securityfocus.com/bid/3546 Exploit Patch Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-05...
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker partial control (estimated)
Severity
6.4
Medium
Timeline
Published14 Nov 2001
Updated18 Oct 2026
First seen29 Sep 2026
Sources
CVE-2001-0723 · NVD
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