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Fencer Vulns
critical 10.0

CVE-2016-8352 json

An issue was discovered in Schneider Electric ConneXium firewalls TCSEFEC23F3F20 all versions, TCSEFEC23F3F21 all versions, TCSEFEC23FCF20…

published 2017-02-13 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9200

cvss
10.0
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.2%
EPSS 4.2% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-16-306-01 updated cvss 10.0

Schneider Electric ConneXium Buffer Overflow Vulnerability

  • Schneider Electric ConneXium TCSEFEC2CF3F20 firewall Schneider Electric ConneXium TCSEFEC23F3F20 firewall Schneider Electric ConneXium TCSEFEC23F3F21 firewall Schneider Electric ConneXium TCSEFEC23FCF20 firewall Schneider Electric ConneXium TCSEFEC23FCF21 firewall
    affected: mitigation “Schneider Electric recommends users contact their local Schneider representative for additional information.”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

4.16% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 10.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • n/a Schneider Electric ConneXium TCSEFEC2*

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.