CVE-2000-0457 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 52.8% (pctl 99)
Patch early
A public exploit exists.
Description
ISM.DLL in IIS 4.0 and 5.0 allows remote attackers to read file contents by requesting the file and appending a large number of encoded spaces (%20) and terminated with a .htr extension, aka the ".HTR File Fragment Reading" or "File Fragment Reading via .HTR" vulnerability.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 52.75% — more likely to be exploited than 99% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2000-05-11 |
| Last modified | 2026-06-16 |
Affected (2)
| Vendor | Product |
|---|---|
| microsoft | internet information server |
| microsoft | internet information services |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft IIS 4.0/5.0 - Malformed Filename Request | 2000-05-11 |
References
- http://marc.info/?l=bugtraq&m=95810120719608&w=2
- http://www.securityfocus.com/bid/1193
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-031
- https://exchange.xforce.ibmcloud.com/vulnerabilities/4448
- http://marc.info/?l=bugtraq&m=95810120719608&w=2
- http://www.securityfocus.com/bid/1193
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-031
- https://exchange.xforce.ibmcloud.com/vulnerabilities/4448
→ the Explorer · watch your stack · NVD