CVE-2023-3943

criticalpriority · track · 0EPSS 0.009 · 61 %ileEURU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.95% (61st) EPSS

CVSS 10 · critical

Is it mine?

4 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · fstec_bdu

EPSS · scored 2026-10-22

Stack-based Buffer Overflow vulnerability in ZkTeco-based OEM devices allows, in some cases, the execution of arbitrary code. Due to the lack of protection mechanisms such as stack canaries and PIE, it is possible to successfully execute code even under restrictive conditions. This issue affects ZkTeco-based OEM devices (ZkTeco ProFace X, Smartec ST-FR043, Smartec ST-FR041ME and possibly others) with firmware ZAM170-NF-1.8.25-7354-Ver1.0.0 and possibly others.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.110criticalAV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.110criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · vulnerability@kaspersky.comexploitability 3.9 · impact 6

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-121USCWE-121US

affected products (4)

Products and version ranges known to be affected.

ZkTeco-based OEM devices with firmware ZAM170-NF-1.8.25-7354-Ver1.0.0≤ ZAM170-NF-1.8.25-7354-Ver1.0.0enisa_euvdEU
ZKTECO CO., LTD Smartec ST-FR041ME≤ ZAM170-NF-1.8.25-7354-Ver1.0.0fstec_bduRU
ZKTECO CO., LTD Smartec ST-FR043≤ ZAM170-NF-1.8.25-7354-Ver1.0.0fstec_bduRU
ZKTECO CO., LTD ZkTeco ProFace X≤ ZAM170-NF-1.8.25-7354-Ver1.0.0fstec_bduRU

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu NVD CVE.org MITRE

published 2024-05-21modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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