CVE-1999-1189 json
Buffer overflow in Netscape Navigator/Communicator 4.7 for Windows 95 and Windows 98 allows remote attackers to cause a denial of service,…
published 1999-11-24 26 y ago modified 2026-06-16 4 mo ago also EUVD-1999-1170
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.5%
- EPSS 2.5% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
Buffer overflow in Netscape Navigator/Communicator 4.7 for Windows 95 and Windows 98 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long argument after the ? character in a URL that references an .asp, .cgi, .html, or .pl file.
Patch / fix
- securityfocus.com/bid/822 advisory
Exploit prediction
2.52% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- securityfocus.com http://www.securityfocus.com/bid/822 referenced PoC, tagged "exploit" by a source, unverified
- securityfocus.com http://www.securityfocus.com/archive/1/36306 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
securityfocus.com
/bid/822
vdb-entry, exploit, patch, vendor-advisory
-
securityfocus.com
/archive/1/36306
mailing-list, exploit, vendor-advisory
-
securityfocus.com
/archive/1/36608
mailing-list, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/7884
vdb-entry
Sources
- CVE List CVE-1999-1189
- NVD CVE-1999-1189
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