SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2009-4660

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.

EXPLOIT ×2 ✓HIGH 10.0EPSS 62.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 62.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

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.

CVSS 2.0
10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
62.71% probability · 99th percentile
Public exploits
2 in Exploit-DB · verified · first 15 September 2009
CISA KEV
Not listed
Weakness
CWE-119
Affected
bigantsoft/bigant messenger
Source
cve@mitre.org
EPSS trend
0%33%65%26 October 2026: 62.71%26 October 202626 October 2026

EPSS 62.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (2)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-9690source ↗BigAnt Server 2.50 - GET Universal Remote Buffer Overflow (SEH)windows · hack4loveremote15 September 2009yes
EDB-9673source ↗BigAnt Server 2.50 - GET Remote Buffer Overflow (SEH)windows · blakeremote15 September 2009yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.