CVE-2003-0033

Buffer overflow in the RPC preprocessor for Snort 1.8 and 1.9.x before 1.9.1 allows remote attackers to execute arbitrary code via fragmented RPC packets.

Published: 2003-03-07 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-0033 is rated High Risk (68.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 11.89%, 96th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize 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-2003-0033

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 56.82% 11.89% -44.93%
2 2026-05-07 51.59% 56.82% +5.23%
3 2025-03-30 — 51.59% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-0033

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2003-0033

Affected software / configurations for CVE-2003-0033

Vendor Product Version Raw CPE
snort snort 1.8.0 cpe:2.3:a:snort:snort:1.8.0:*:*:*:*:*:*:*
snort snort 1.8.1 cpe:2.3:a:snort:snort:1.8.1:*:*:*:*:*:*:*
snort snort 1.8.2 cpe:2.3:a:snort:snort:1.8.2:*:*:*:*:*:*:*
snort snort 1.8.3 cpe:2.3:a:snort:snort:1.8.3:*:*:*:*:*:*:*
snort snort 1.8.4 cpe:2.3:a:snort:snort:1.8.4:*:*:*:*:*:*:*
snort snort 1.8.5 cpe:2.3:a:snort:snort:1.8.5:*:*:*:*:*:*:*
snort snort 1.8.6 cpe:2.3:a:snort:snort:1.8.6:*:*:*:*:*:*:*
snort snort 1.8.7 cpe:2.3:a:snort:snort:1.8.7:*:*:*:*:*:*:*
snort snort 1.9.0 cpe:2.3:a:snort:snort:1.9.0:*:*:*:*:*:*:*

References for CVE-2003-0033

cvelogic Threat Intelligence