CVE-1999-0921

BMC Patrol allows any remote attacker to flood its UDP port, causing a denial of service.

Published: 1999-04-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0921 is rated Moderate Risk (46/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.61%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-1999-0921

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 2026-06-15 1.10% 1.61% +0.52%
2 2025-07-16 0.74% 1.10% +0.36%
3 2025-03-30 — 0.74% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0921

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-1999-0921

Affected software / configurations for CVE-1999-0921

Vendor Product Version Raw CPE
bmc patrol_agent 3.2.5 cpe:2.3:a:bmc:patrol_agent:3.2.5:*:*:*:*:*:*:*

References for CVE-1999-0921

cvelogic Threat Intelligence