The CmpWebServer.dll module in the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a crafted Content-Length in an HTTP POST or (2) an invalid HTTP request method
Published Dec 25, 2011
5.0
MEDIUMCVSS 2.0
EPSS 10.39%
Description
The CmpWebServer.dll module in the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a crafted Content-Length in an HTTP POST or (2) an invalid HTTP request method.
Affected products
No data.
- 3.4
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 10.39% (0.10395) | 95.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 10.78% (0.10775) | 95.26th | v5 (v2026.06.15) |
| Jan 29, 2026 | 25.40% (0.25400) | 96.06th | v4 (v2025.03.14) |
| Nov 17, 2025 | 28.98% (0.28977) | 96.35th | v4 (v2025.03.14) |
| Nov 15, 2025 | 25.96% (0.25956) | 96.05th | v4 (v2025.03.14) |
| Aug 25, 2025 | 27.55% (0.27548) | 96.24th | v4 (v2025.03.14) |
| Mar 30, 2025 | 25.17% (0.25173) | 95.73th | v4 (v2025.03.14) |
| Mar 29, 2025 | 31.14% (0.31143) | 94.89th | v4 (v2025.03.14) |
| Mar 17, 2025 | 25.17% (0.25173) | 95.73th | v4 (v2025.03.14) |
| Dec 17, 2024 | 13.38% (0.13383) | 95.56th | v3 (v2023.03.01) |
| Dec 12, 2024 | 6.64% (0.06643) | 94.07th | v3 (v2023.03.01) |
| Jan 12, 2024 | 6.84% (0.06844) | 93.22th | v3 (v2023.03.01) |
| Sep 22, 2023 | 6.75% (0.06747) | 93.04th | v3 (v2023.03.01) |
| Jul 24, 2023 | 8.39% (0.08388) | 93.51th | v3 (v2023.03.01) |
| Mar 19, 2023 | 9.36% (0.09362) | 93.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 12.38% (0.12384) | 94.48th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.79% (0.06790) | 92.15th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.79% (0.06790) | 91.41th | v2 (v2022.01.01) |
| Mar 9, 2022 | 6.79% (0.06790) | 79.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.02% (0.07015) | 79.97th | v2 (v2022.01.01) |
No CWE recorded.
References (7)
- http://aluigi.altervista.org/adv/codesys_1-adv.txt x_refsource_MISC
- http://seclists.org/bugtraq/2011/Nov/178 mailing-listx_refsource_BUGTRAQ
- http://secunia.com/advisories/47018 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.osvdb.org/77388 vdb-entryx_refsource_OSVDB
- http://www.osvdb.org/77389 vdb-entryx_refsource_OSVDB
- http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdf x_refsource_MISCExploitUS Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/71533 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://aluigi.altervista.org/adv/codesys_1-adv.txt | x_refsource_MISC | |
| http://seclists.org/bugtraq/2011/Nov/178 | mailing-listx_refsource_BUGTRAQ | |
| http://secunia.com/advisories/47018 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.osvdb.org/77388 | vdb-entryx_refsource_OSVDB | |
| http://www.osvdb.org/77389 | vdb-entryx_refsource_OSVDB | |
| http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdf | x_refsource_MISCExploitUS Government Resource | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/71533 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.