CVE-1999-0905

Exp

Denial of service in Axent Raptor firewall via malformed zero-length IP options.

Published: 1999-10-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0905 is rated High Exploit Risk (67.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 4.65%, 91th percentile). 1 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-1999-0905

EDB-ID Source Kind Published Link
19564 exploit_db edb 1999-10-21 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-0905

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 3.80% 4.65% +0.85%
2 2025-03-30 3.86% 3.80% -0.05%
3 2025-03-29 — 3.86% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0905

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-1999-0905

Affected software / configurations for CVE-1999-0905

Vendor Product Version Raw CPE
axent raptor_firewall — cpe:2.3:a:axent:raptor_firewall:*:*:*:*:*:*:*:*

References for CVE-1999-0905

cvelogic Threat Intelligence