CVE-2023-3704Network attack vector

Unauthenticated system-time modification via crafted HTTP request

Published Aug 24, 2023 · Updated Oct 4, 2024

Improper input validation in CP-Plus DVR firmware before 4.000.00AT008.0.R.20230302 allows remote attackers to change system time. The web-based management interface accepts a specially crafted unauthenticated HTTP request without adequately validating the time-setting input; the exact endpoint and parameter are undisclosed. Network access to the management interface is sufficient, and exploitation alters the recorder clock with no reported confidentiality or availability effect.

CVSS severity5.3
Medium
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper input validation in CP-Plus DVR firmware before 4.000.00AT008.0.R.20230302 allows remote attackers to change system time. The web-based management interface accepts a specially crafted unauthenticated HTTP request without adequately validating the time-setting input; the exact endpoint and parameter are undisclosed. Network access to the management interface is sufficient, and exploitation alters the recorder clock with no reported confidentiality or availability effect.

The record

CVE
CVE-2023-3704
Published
Aug 24, 2023
Updated
Oct 4, 2024
Vendor
Aditya Infotech Limited
Product
CP-UVR-0401L1-4KH
Classifications
CWE-20, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <4.000.00AT008.0.R.20230302

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Aditya Infotech Limited · CP-UVR-0401L1-4KHversion=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP-UVR-1601E1-HCversion=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP-UVR-0801F1-HCversion=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP Plus Digital Video Recorder (DVR)version=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP-UVR-0808K1-Hversion=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP-UVR-0801K1-Hversion=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP-UVR-0401L1B-4KHversion=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP-UVR-1601E1-Hversion=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP-UVR-0801K1B-Hversion=0 <4.000.00AT008.0.R.20230302
Aditya Infotech Limited · CP-UVR-1601E2-Hversion=0 <4.000.00AT008.0.R.20230302

Published CVSS scores

5.3CVE CNACVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1565.001Data Manipulation: Stored Data Manipulation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo