CVE-2004-0540 Auth bypass in n/a

What is CVE-2004-0540?

CVE-2004-0540 is a critical authentication bypass vulnerability in Microsoft Windows 2000, published on 8 Jun 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Microsoft Windows 2000, when running in a domain whose Fully Qualified Domain Name (FQDN) is exactly 8 characters long, does not prevent users with expired passwords from logging on to the domain.

Which versions are affected by CVE-2004-0540?

It affects 1 product.

Products include Microsoft Windows 2000.

How do I fix CVE-2004-0540?

No fix has been published for CVE-2004-0540 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2004-0540 being exploited?

There is no known exploitation of CVE-2004-0540 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Windows 2000

• CVE-2008-4250 Microsoft Windows Buffer Overflow Exploited Critical 9.8
• CVE-2010-0232 Microsoft Windows Kernel Exception Handler Exploited High 7.8
• CVE-2009-1123 Microsoft Windows Improper Input Validation Exploited High 7.8
• CVE-2002-0367 Microsoft Windows Privilege Escalation Exploited High 7.8
• CVE-2010-0269 Memory corruption in n/a Critical 10.0

All Microsoft Windows 2000 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CVE-2003-1047, GHSA-3mqm-g7fr-36hv.