CVE-2023-41354Network attack vector

System time disclosure via permitted ICMP timestamp requests

Published Nov 3, 2023 · Updated Sep 5, 2024

Information exposure in Chunghwa Telecom Nokia G-040W-Q G040WQR201207 allows remote attackers to read device time through ICMP timestamp requests. Its firewall permits ICMP Timestamp Request packets by default and returns timestamp data instead of blocking those unauthenticated probes. Network reachability to ICMP is the only stated gate; the disclosed data is limited to device timing information and does not include write access or service interruption.

CVSS severity5.3
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Chunghwa Telecom Nokia G-040W-Q G040WQR201207 allows remote attackers to read device time through ICMP timestamp requests. Its firewall permits ICMP Timestamp Request packets by default and returns timestamp data instead of blocking those unauthenticated probes. Network reachability to ICMP is the only stated gate; the disclosed data is limited to device timing information and does not include write access or service interruption.

The record

CVE
CVE-2023-41354
Published
Nov 3, 2023
Updated
Sep 5, 2024
Vendor
Chunghwa Telecom
Product
Nokia G-040W-Q
Classifications
CWE-200, CAPEC-292, T1124
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 5, 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?

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  1. Affected versionversion=G040WQR201207

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Chunghwa Telecom · Nokia G-040W-Qversion=G040WQR201207

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
4.0TWCERT/CCCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-200Exposure of Sensitive Information to an Unauthorized Actor
CAPEC-292Host Discovery
T1124System Time Discovery

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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