CVE-2022-30564Network attack vector

System-time modification via unauthenticated crafted packets

Published Feb 9, 2023 · Updated Mar 25, 2025

Improper access control in Dahua embedded products allows remote attackers to change device system time through a crafted packet. The vulnerable network interface accepts a timestamp-changing packet without enforcing authorization, causing the device clock to take an attacker-selected value. No credentials or user interaction are required, and the disclosed consequence is limited to unauthorized system-time modification.

CVSS severity5.3
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Dahua embedded products allows remote attackers to change device system time through a crafted packet. The vulnerable network interface accepts a timestamp-changing packet without enforcing authorization, causing the device clock to take an attacker-selected value. No credentials or user interaction are required, and the disclosed consequence is limited to unauthorized system-time modification.

The record

CVE
CVE-2022-30564
Published
Feb 9, 2023
Updated
Mar 25, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.6Dahua TechnologyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C
5.3CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3Dahua TechnologyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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-284Improper Access Control

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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