CVE-2000-0991 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 9.7% (pctl 95)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 9.69% — more likely to be exploited than 95% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2000-12-19 |
| Last modified | 2026-09-23 |
Affected (1)
| Vendor | Product |
|---|---|
| hilgraeve | hyperterminal |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Hilgraeve HyperTerminal 6.0 - Telnet Buffer Overflow | 2000-10-18 |
References
- http://www.securityfocus.com/bid/1815
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-079
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5387
- http://www.securityfocus.com/bid/1815
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-079
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5387
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