cve-2021-3712

About this tag
CVE-2021-3712 is an OpenSSL vulnerability that allows out-of-bounds reads, posing a significant risk to industrial control systems. On WindowsForum.com, discussions focus on Siemens products affected by this flaw, including networking, communications, and automation devices. Siemens has released ProductCERT guidance and patches for many SKUs, but some product lines, such as parts of Industrial Edge and legacy appliances, lack planned fixes and require operator-side mitigations. The Brownfield Connectivity Client (BFCClient) is also impacted, with an urgent recommendation to update to V2.17 or later. Users share patching strategies and mitigation steps to reduce exposure in industrial environments.

  1. Siemens OpenSSL CVE-2021-3712: Patch and mitigate ICS risk (SSA-244969)

    Siemens and upstream OpenSSL vulnerabilities that allow out-of-bounds reads — tracked under CVE-2021-3712 — remain a live operational risk across dozens of Siemens industrial networking, communications, and automation products; Siemens has published ProductCERT guidance and fixes for many...
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    • asn1 cisa cp modules cve-2021-3712 defense in depth firmware ics security incident response industrial cybersecurity industrial edge memory disclosure network segmentation openssl openssl-cve-2021-3712 ot security patch management ruggedcom scalance siemens ssa-244969
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    • Forum: Security Alerts

  2. Siemens BFCClient OpenSSL Flaws: Patch to V2.17 or Mitigate Now

    Siemens’ Brownfield Connectivity Client (BFCClient) is the subject of a freshly republished advisory that bundles multiple OpenSSL-related flaws into a single operational risk for industrial environments—vulnerabilities that can be remotely triggered, permit memory disclosure or application...
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    • bfcclient certificateparsing cisa cve-2021-3711 cve-2021-3712 cve-2022-0778 cve-2023-0286 cve-2023-0464 denial of service ics industrial memory disclosure opc ua openssl ot security patch management productcert siemens sinumerik tls
    • Replies: 0
    • Forum: Security Alerts