CVE-2011-3996 [Medium] | Denial of Service in Csworks

CVE-2011-3996 is rated Moderate Risk (50.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.44%). EPSS rose +1.77% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.67%	2.44%	+1.77%
2	2025-03-17	3.16%	0.67%	-2.49%
3	2024-12-17	—	3.16%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.67%

2.44%

+1.77%

2025-03-17

3.16%

0.67%

-2.49%

2024-12-17

—

3.16%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.0	2.0	MEDIUM	`AV:N/AC:L/Au:N/C:N/I:N/A:P` 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:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:P) Partial availability impact.	10.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.0

2.0

MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P 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:N): No confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:P): Partial availability impact.

10.0

2.9

[email protected]

Affected software / configurations for CVE-2011-3996

Vendor	Product	Version	Raw CPE
controlsystemworks	csworks	<= 2.0.4115.0	cpe:2.3:a:controlsystemworks:csworks::::::::
controlsystemworks	csworks	1.0.601.0	cpe:2.3:a:controlsystemworks:csworks:1.0.601.0:::::::*
controlsystemworks	csworks	1.0.612.0	cpe:2.3:a:controlsystemworks:csworks:1.0.612.0:::::::*
controlsystemworks	csworks	1.0.623.0	cpe:2.3:a:controlsystemworks:csworks:1.0.623.0:::::::*
controlsystemworks	csworks	1.0.720.0	cpe:2.3:a:controlsystemworks:csworks:1.0.720.0:::::::*
controlsystemworks	csworks	1.0.801.0	cpe:2.3:a:controlsystemworks:csworks:1.0.801.0:::::::*
controlsystemworks	csworks	1.0.813.0	cpe:2.3:a:controlsystemworks:csworks:1.0.813.0:::::::*
controlsystemworks	csworks	1.0.901.0	cpe:2.3:a:controlsystemworks:csworks:1.0.901.0:::::::*
controlsystemworks	csworks	1.0.3540.0	cpe:2.3:a:controlsystemworks:csworks:1.0.3540.0:::::::*
controlsystemworks	csworks	1.0.3560.0	cpe:2.3:a:controlsystemworks:csworks:1.0.3560.0:::::::*
controlsystemworks	csworks	1.0.3580.0	cpe:2.3:a:controlsystemworks:csworks:1.0.3580.0:::::::*
controlsystemworks	csworks	1.1.3600.0	cpe:2.3:a:controlsystemworks:csworks:1.1.3600.0:::::::*
controlsystemworks	csworks	1.1.3674.0	cpe:2.3:a:controlsystemworks:csworks:1.1.3674.0:::::::*
controlsystemworks	csworks	1.1.3700.0	cpe:2.3:a:controlsystemworks:csworks:1.1.3700.0:::::::*
controlsystemworks	csworks	1.2.3730.0	cpe:2.3:a:controlsystemworks:csworks:1.2.3730.0:::::::*
controlsystemworks	csworks	1.2.3800.0	cpe:2.3:a:controlsystemworks:csworks:1.2.3800.0:::::::*
controlsystemworks	csworks	1.4.3820.0	cpe:2.3:a:controlsystemworks:csworks:1.4.3820.0:::::::*
controlsystemworks	csworks	1.4.3830.0	cpe:2.3:a:controlsystemworks:csworks:1.4.3830.0:::::::*
controlsystemworks	csworks	1.4.3850.0	cpe:2.3:a:controlsystemworks:csworks:1.4.3850.0:::::::*
controlsystemworks	csworks	1.4.3860.0	cpe:2.3:a:controlsystemworks:csworks:1.4.3860.0:::::::*
controlsystemworks	csworks	1.4.3880.0	cpe:2.3:a:controlsystemworks:csworks:1.4.3880.0:::::::*
controlsystemworks	csworks	1.4.3900.0	cpe:2.3:a:controlsystemworks:csworks:1.4.3900.0:::::::*
controlsystemworks	csworks	1.4.4000.0	cpe:2.3:a:controlsystemworks:csworks:1.4.4000.0:::::::*
controlsystemworks	csworks	1.7.4050.0	cpe:2.3:a:controlsystemworks:csworks:1.7.4050.0:::::::*
controlsystemworks	csworks	1.7.5000.0	cpe:2.3:a:controlsystemworks:csworks:1.7.5000.0:::::::*

References for CVE-2011-3996

URL	Tags
http://jvn.jp/en/jp/JVN98649286/index.html
http://jvndb.jvn.jp/jvndb/JVNDB-2011-000095
http://secunia.com/advisories/46625	Vendor Advisory
http://www.controlsystemworks.com/ProductHistory.aspx
http://www.controlsystemworks.com/blogengine/post/CSWorks-2041151-security-release.aspx	Vendor Advisory
http://www.securityfocus.com/bid/50458
https://exchange.xforce.ibmcloud.com/vulnerabilities/71079

URL

CVE-2011-3996

Exploit prediction scoring system (EPSS) score for CVE-2011-3996

Common vulnerability scoring system (CVSS) metrics for CVE-2011-3996

Weakness enumeration for CVE-2011-3996

Affected software / configurations for CVE-2011-3996

References for CVE-2011-3996