No exploitation reported

CVE-2016-8352

No exploitation reported by the sources we read.

Published2017-02-13
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2017-02-1321:59CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-8352?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-8352?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Schneider-electric connexium firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-16-306-01 CISA5 known affected
Schneider Electric ConneXium Buffer Overflow Vulnerability
Schneider Electric ConneXium TCSEFEC23F3F20 firewall: vers:all/* · Schneider Electric ConneXium TCSEFEC23F3F21 firewall: vers:all/* · Schneider Electric ConneXium TCSEFEC23FCF20 firewall: vers:all/* · +2 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-16-306-01 · 5 productsSchneider Electric is in the process of updating ConneXium firewall products to resolve this vulnerability through a firmware update. The updated firmware will be available on the Schneider Electric web site for download.
Mitigation from the vendor CISA ICSA-16-306-01 · 5 productsSchneider Electric recommends users contact their local Schneider representative for additional information.

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.010read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score4.2 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published: 2017-02-13
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-8352?

Is CVE-2016-8352 actively exploited?

Active exploitation of CVE-2016-8352 has not been confirmed. Its EPSS score was 4.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-8352?

CVE-2016-8352 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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