CVE-2000-0991 json
Buffer overflow in Hilgraeve, Inc.
published 2000-12-19 25 y ago modified 2026-09-23 46 d ago also EUVD-2000-0978
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 9.7%
- EPSS 9.7% chance of exploitation in 30 days, percentile 95%
- public exploits
- 1
- Exploit-DB
Summary
Buffer overflow in Hilgraeve, Inc. HyperTerminal client on Windows 98, ME, and 2000 allows remote attackers to execute arbitrary commands via a long telnet URL, aka the "HyperTerminal Buffer Overflow" vulnerability.
Patch / fix
- securityfocus.com/bid/1815 advisory
Timeline
- First public exploit (EDB-20307)
- Published
Exploit prediction
9.69% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-20307 Hilgraeve HyperTerminal 6.0 - Telnet Buffer Overflow dos, 2000-10-18
- securityfocus.com http://www.securityfocus.com/bid/1815 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/1815
vdb-entry, exploit, patch, vendor-advisory
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2000/ms00-079
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/5387
vdb-entry
Sources
- CVE List CVE-2000-0991
- NVD CVE-2000-0991
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.