CVE-2009-4660

Exp

Stack-based buffer overflow in the AntServer Module (AntServer.exe) in BigAnt IM Server 2.50 allows remote attackers to execute arbitrary code via a long GET request to TCP port 6660.

Published: 2010-03-03 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4660 is rated High Exploit Risk (88.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 80.67%, 99th percentile). 3 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-2009-4660

EDB-ID Source Kind Published Link
9690 exploit_db edb 2009-09-15 Exploit-DB ↗
9673 exploit_db edb 2009-09-15 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4660

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 2026-05-02 81.72% 80.67% -1.05%
2 2026-01-23 80.72% 81.72% +1.00%
3 2025-05-13 — 80.72% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4660

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-2009-4660

Affected software / configurations for CVE-2009-4660

Vendor Product Version Raw CPE
bigantsoft bigant_messenger 2.50 cpe:2.3:a:bigantsoft:bigant_messenger:2.50:*:*:*:*:*:*:*

References for CVE-2009-4660

cvelogic Threat Intelligence