Buffer Overflow in Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all (CVE-2016-8352)
Summary
Vulnerability in Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all (CVE-2016-8352). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
An issue was discovered in Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all versions, TCSEFEC23F3F21 all versions, TCSEFEC23FCF20 all versions, TCSEFEC23FCF21 all versions, and TCSEFEC2CF3F20 all versions. A stack-based buffer overflow can be triggered during the SNMP login authentication process that may allow an attacker to remotely execute code.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2016-8352 has been found in Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all.
Successful exploitation can lead to full system takeover. CVSS score: 10.0/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all CVE-2016-8352" on the vendor's site.
CVE-2016-8352 (Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all) — CWE-119 / CVSS v3 10.0
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-119) exists in Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all.
Check the vendor advisory for the affected versions of Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all.
Severity: Critical (CVSS 10.0/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- advisory securityfocus.com
- advisory ics-cert.us-cert.gov