IIS newdsn.exe CGI script allows remote users to overwrite files.

published 1997-09-01 29 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0191

cvss: 6.4; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 53.3%; EPSS 53.3% chance of exploitation in 30 days, percentile 98%
public exploits: 1; Exploit-DB

Timeline

1997-08-25 First public exploit (EDB-20309)
1997-09-01 Published

Exploit prediction

53.30% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-20309 Microsoft IIS 3.0 - 'newdsn.exe' File Creation remote, 1997-08-25

CVSS scores

assigned by	version	score	vector
NVD	2.0	6.4	AV:N/AC:L/Au:N/C:P/I:P/A:N

References

osvdb.org /275
vdb-entry

Sources

CVE List CVE-1999-0191
NVD CVE-1999-0191

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary