Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-1999-0991

23
FAUCET Score

CVE-1999-0991 describes a buffer overflow vulnerability in GoodTech Telnet Server NT, allowing remote attackers to trigger a denial of service by submitting an excessively long login name. This medium-severity vulnerability (CVSS 5.0) can be exploited over the network with low attack complexity and no authentication, resulting in availability impact. While not actively exploited in the wild or on any hot lists, public exploit code exists on ExploitDB, and it has garnered no significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.1CPE matchmatch criteria
cpe:2.3:a:goodtech:telnet_server_nt:2.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.46%
Probability of exploitation in next 30 days
EPSS Percentile
82.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-19666 · Dec 6, 1999
This CVE's current EPSS score of 0.0246 is in the 74th percentile among its peer group of 23,705 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securityfocus.com / bid/862