CVE-2011-5007: n/a vulnerability

CVE-2011-5007: Stack-based buffer overflow in the CmpWebServer component in 3S CoDeSys 3.4 SP4 Patch 2 and earlier, as use...

Stack-based buffer overflow in the CmpWebServer component in 3S CoDeSys 3.4 SP4 Patch 2 and earlier, as used on the ABB AC500 PLC and possibly other products, allows remote attackers to execute arbitrary code via a long URI to TCP port 8080.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 00:23 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw affects the web server component in older 3S CoDeSys software used on ABB AC500 PLCs and possibly other controllers. A remote attacker who can reach TCP port 8080 may be able to crash or take control of the device. The bundle does not provide CVSS scoring or confirmed active exploitation. Exposure is most likely in industrial environments running legacy CoDeSys 3.4 SP4 Patch 2 or earlier, especially ABB AC500 PLC deployments with the embedded web server reachable on TCP 8080. Other products may be affected, but the provided sources do not confirm a complete product list. Prioritize this where affected PLCs are reachable beyond a tightly controlled OT management network. Remote code execution against controller web services can create safety, downtime, and recovery risk. Because fix details are incomplete in the bundle, assign OT engineering to confirm vendor-supported remediation. Mitigation focus: Inventory PLCs and runtimes using 3S CoDeSys 3.4 SP4 Patch 2 or earlier.; Review ICS-CERT, 3S, and ABB guidance for supported updates or replacement paths.; Restrict TCP 8080 access to trusted engineering hosts only..

Prepared: Jun 27, 2026, 17:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 25, 2011, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

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