Microsoft Internet Explorer 4.0 through 6.0 could allow local users to differentiate…
Priority LOW 15Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Microsoft Internet Explorer 4.0 through 6.0 could allow local users to differentiate between alphanumeric and non-alphanumeric characters used in a password by pressing certain control keys that jump between non-alphanumeric characters, which makes it easier to conduct a brute-force password guessing attack.
Why it matters now
EPSS 0.02047 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:ie:4.0:*:windows_nt:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:ie:4.0.1:*:windows_98:*:*:*:*:* | 4.0.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:ie:4.0.1:*:windows_nt:*:*:*:*:* | 4.0.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:ie:4.1:*:windows_95:*:*:*:*:* | 4.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:ie:4.1:*:windows_98:*:*:*:*:* | 4.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:ie:4.1:*:windows_nt_4.0:*:*:*:*:* | 4.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:4.0.1:sp2:*:*:*:*:*:* | 4.0.1 sp2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:* | 5.5 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:ie:4.0:*:windows_nt:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:ie:4.0.1:*:windows_98:*:*:*:*:* Versions 4.0.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:ie:4.0.1:*:windows_nt:*:*:*:*:* Versions 4.0.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:ie:4.1:*:windows_95:*:*:*:*:* Versions 4.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:ie:4.1:*:windows_98:*:*:*:*:* Versions 4.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:ie:4.1:*:windows_nt_4.0:*:*:*:*:* Versions 4.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:4.0.1:sp2:*:*:*:*:*:* Versions 4.0.1 sp2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:* Versions 5.5 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-1497
- 2026-10-03 Alias added: GHSA-vq53-fvjx-3c2c
References
More Microsoft Ie vulnerabilities
- TI-2004-00947 Heap-based buffer overflow in Internet Explorer 6 allows remote attackers to execute… CVSS 2.0HIGH 10.0
- TI-2004-00183 Stack-based buffer overflow in the Task Scheduler for Windows 2000 and XP, and Internet… CVSS 2.0HIGH 10.0
- TI-2007-00210 The wininet.dll FTP client code in Microsoft Internet Explorer 5.01 and 6 might allow… CVSS 2.0HIGH 10.0
- TI-2006-01313 Microsoft Internet Explorer 6 and 7 Beta 2 allows remote attackers to cause a denial of… CVSS 2.0HIGH 9.3
- TI-2006-01146 Microsoft Internet Explorer 5.01 through 6 allows remote attackers to execute arbitrary… CVSS 2.0HIGH 10.0
- TI-2006-03617 Integer overflow in Microsoft Internet Explorer 6 on Windows XP SP2 allows remote… CVSS 3.1HIGH 8.8
Sources
- CVE-2001-1497 · CVE Program
- CVE-2001-1497 · NVD
- FIRST EPSS
- GHSA-vq53-fvjx-3c2c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences