CVE-2010-4740Bacnet Opc Client Memory Corruption
Stack-based buffer overflow in WTclient.dll in SCADA Engine BACnet OPC Client before 1.0.25 allows user-assisted remote attackers to execute arbitrary code via a crafted .csv file, related to a status log message.
Published Feb 16, 2011 · Updated Apr 28, 2026
Key Facts
Patch immediately- CVE-2010-4740 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Bacnet Opc Client (Scadaengine).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 42% probability of exploitation in the next 30 days.
- Fixed versions are available, including Bacnet Opc Client 1.0.24.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
42%
Higher than 98.6% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
56/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
2
Reports of active use
Advisories And Exploit References
- advisory41466
Description
Stack-based buffer overflow in WTclient.dll in SCADA Engine BACnet OPC Client before 1.0.25 allows user-assisted remote attackers to execute arbitrary code via a crafted .csv file, related to a status log message.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Bacnet Opc ClientScadaengine | See advisory | 1.0.24 |
Patched Releases
Bacnet Opc Client
1.0.24
Timeline
Publicly disclosed
Feb 16, 2011
Last updated
Apr 28, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisory41466
- exploitpacketstormsecurity.org · bacnet-overflow.py.txt
- exploitMSF bacnet_csv.rb
- exploitExploitDB-15026
- exploit43289
FAQ
Common Questions.
Stack-based buffer overflow in WTclient.dll in SCADA Engine BACnet OPC Client before 1.0.25 allows user-assisted remote attackers to execute arbitrary code via a crafted .csv file, related to a status log message.
Affected: Bacnet Opc Client (Scadaengine). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Bacnet Opc Client 1.0.24.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2010-4740 On Your Attack Surface?
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