Read the docs
TI-2000-00981 Aliases CVE-2000-0991GHSA-34hw-5cr2-j645

Buffer overflow in Hilgraeve, Inc.

Priority MEDIUM 45Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

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.

Why it matters now

EPSS 0.09694 95th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hilgraeve:hyperterminal:*:*:*:*:*:*:*:*up to 6.0VulnerableHilgraeve
  • cpe:2.3:a:hilgraeve:hyperterminal:*:*:*:*:*:*:*:* Versions up to 6.0 Vulnerable ·Hilgraeve

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2000-0991
  2. 2026-10-03 Alias added: GHSA-34hw-5cr2-j645

References

Advisory 1

Sources