CVE-1999-1196

Exp

Hummingbird Exceed X version 5 allows remote attackers to cause a denial of service via malformed data to port 6000.

Published: 1999-04-07 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-1196 is rated High Exploit Risk (60.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.79%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-1196

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-1196

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-17 0.73% 0.79% +0.06%
2 2024-12-17 0.28% 0.73% +0.45%
3 2023-03-07 — 0.28% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-1196

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-1999-1196

NVD evaluator notes for CVE-1999-1196

Solution: Upgrade to a non-vulnerable version of Exceed (Hummingbird Exceed 6.0.1 Hummingbird Exceed 6.0.2 Hummingbird Exceed 6.1)

Affected software / configurations for CVE-1999-1196

Vendor Product Version Raw CPE
hummingbird exceed 5.0 cpe:2.3:a:hummingbird:exceed:5.0:*:*:*:*:*:*:*

References for CVE-1999-1196

cvelogic Threat Intelligence