CVE-2023-49713Network attack vector

Remote denial of service via NetBIOS packets

Published Dec 12, 2023 · Updated Aug 2, 2024

Denial-of-service vulnerability in NetBIOS service in JTEKT ELECTRONICS CORPORATION GC-A2 series all versions allows remote attackers to stop the HMI via crafted packets. The NetBIOS service accepts specially crafted packets sent to specific ports, triggering a denial-of-service condition. No authentication is required; the HMI can stop and requires a restart to recover.

CVSS severity7.5
High
EPSS probability0.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial-of-service vulnerability in NetBIOS service in JTEKT ELECTRONICS CORPORATION GC-A2 series all versions allows remote attackers to stop the HMI via crafted packets. The NetBIOS service accepts specially crafted packets sent to specific ports, triggering a denial-of-service condition. No authentication is required; the HMI can stop and requires a restart to recover.

The record

CVE
CVE-2023-49713
Published
Dec 12, 2023
Updated
Aug 2, 2024
Vendor
JTEKT ELECTRONICS CORPORATION
Product
GC-A25
Classifications
CWE-400, T1498
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=all versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JTEKT ELECTRONICS CORPORATION · GC-A25version=all versions
JTEKT ELECTRONICS CORPORATION · GC-A26-J2version=all versions
JTEKT ELECTRONICS CORPORATION · GC-A24W-C(W)version=all versions
JTEKT ELECTRONICS CORPORATION · GC-A28-Cversion=all versions
JTEKT ELECTRONICS CORPORATION · GC-A27-Cversion=all versions
JTEKT ELECTRONICS CORPORATION · GC-A22W-CWversion=all versions
JTEKT ELECTRONICS CORPORATION · GC-A26W-C(W)version=all versions
JTEKT ELECTRONICS CORPORATION · GC-A24-Mversion=all versions
JTEKT ELECTRONICS CORPORATION · GC-A26version=all versions
JTEKT ELECTRONICS CORPORATION · GC-A24version=all versions

Published CVSS scores

7.5JTEKT ELECTRONICS CORPORATIONCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8JTEKT ELECTRONICS CORPORATIONAV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Denial of Service
T1498Network Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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