CVE-2009-4660

critical

Published 2010-03-03 · Modified 2026-04-29

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

10.0

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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-9673 remote windows verified

blake · 2009-09-15

BigAnt Server 2.50 - GET Remote Buffer Overflow (SEH)

Source code queued for fetch — refresh in a moment.

EDB-9690 remote windows verified

hack4love · 2009-09-15

BigAnt Server 2.50 - GET Universal Remote Buffer Overflow (SEH)

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_windows/misc/bigant_server_usv rank 500

BigAnt Server 2.52 USV Buffer Overflow

Source fetch failed: fetch_error — view the original via the link above.

Application impact

Vendor	Product	Versions	Fixed
bigantsoft	bigant_messenger	`2.50`

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.