CVE-1999-0347 EXPLOIT
10.0
HIGH · CVSS 2.0 · EPSS 7.5% (pctl 94)
Patch early
A public exploit exists.
Description
Internet Explorer 4.01 allows remote attackers to read local files and spoof web pages via a "%01" character in an "about:" Javascript URL, which causes Internet Explorer to use the domain specified after the character.
Scoring
| CVSS | 10.0 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
| EPSS | 7.46% — more likely to be exploited than 94% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 1999-01-26 |
| Last modified | 2026-06-16 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Internet Explorer 5.0.1 - Invalid Byte Cross-Frame Access | 1999-01-28 |
References
→ the Explorer · watch your stack · NVD