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CVE-2011-3491 is a heap-based buffer overflow vulnerability in Progea Movicon / PowerHMI versions 11.2.1085 and earlier. The flaw is triggered by improper handling of HTTP requests with a negative Content-Length field, allowing remote attackers to send specially crafted requests that cause a buffer overflow in the application. This vulnerability is remotely exploitable via TCP port 808 and can result in a denial of service (crash) or potentially allow arbitrary code execution in the context of the Movicon application. The vulnerability is critical, with a CVSS v2 base score of 10.0, and public exploits are available.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.