CVE-2022-45431Network attack vector

Unauthenticated server restart via crafted network packet

Published Dec 27, 2022 · Updated Apr 11, 2025

Improper access control in Dahua DSS Server allows remote attackers to restart affected Linux-based servers via crafted packets. The vulnerable interface processes a crafted packet as a restart request without authenticating the sender; Dahua has not disclosed the endpoint or packet field. Exploitation requires bypassing the firewall access-control policy and interrupts DSS availability by restarting the server.

CVSS severity8.6
High
EPSS probability0.64%
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 DSS Server allows remote attackers to restart affected Linux-based servers via crafted packets. The vulnerable interface processes a crafted packet as a restart request without authenticating the sender; Dahua has not disclosed the endpoint or packet field. Exploitation requires bypassing the firewall access-control policy and interrupts DSS availability by restarting the server.

The record

CVE
CVE-2022-45431
Published
Dec 27, 2022
Updated
Apr 11, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 11, 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

7.7Dahua TechnologyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8NVDAV:N/AC:L/Au:N/C:N/I:N/A:C
8.6Dahua TechnologyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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
T1499Endpoint Denial of Service

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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