Security Resilience

CVE-2023-3705

Info Disclosure in Cpplusworld Cp-Vnr-3104 Firmware ≤ b3223p22c02424

Published
24 August 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.011 65th percentile
Risk Priority 60 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-3705 is a high-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Cpplusworld Cp-Vnr-3104 Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 35% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

The vulnerability exists in CP-Plus NVR due to an improper input handling at the web-based management interface of the affected product. An unauthenticated remote attacker could exploit this vulnerability by sending specially crafted HTTP requests to the vulnerable device. Successful…

more

exploitation of this vulnerability could allow the remote attacker to obtain sensitive information on the targeted device.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-3704Same vendor: Cpplusworld
CVE-2026-33882Shared CWE-20, CWE-200
CVE-2025-55679Shared CWE-20, CWE-200
CVE-2026-84135Shared CWE-20, CWE-200
CVE-2026-46584Shared CWE-20, CWE-200
CVE-2017-9788Shared CWE-20, CWE-200
CVE-2026-35038Shared CWE-20, CWE-200
CVE-2023-28732Shared CWE-20, CWE-200
CVE-2026-55993Shared CWE-20, CWE-200
CVE-2026-46726Shared CWE-20, CWE-200

Affected Assets

cpplusworld
cp-vnr-3104 firmware
≤ b3223p22c02424
cpplusworld
cp-vnr-3108 firmware
≤ b3223p22c02424
cpplusworld
cp-vnr-3208 firmware
≤ b3223p22c02424

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-200

Automated marking applies security attributes to system outputs, making it harder for attackers to exploit unmarked sensitive information leading to unauthorized exposure.

addresses: CWE-200

Proper attribute retention and permitted-value enforcement limits unauthorized actors from accessing sensitive information lacking correct labels.

addresses: CWE-200

Prevents unauthorized exposure of sensitive information by prohibiting untrusted external systems from processing or storing it.

addresses: CWE-200

By enforcing authorization matching prior to sharing, the control reduces the risk of exposing sensitive information to unauthorized actors.

addresses: CWE-200

Review and removal of nonpublic information from publicly accessible systems directly prevents exposure of sensitive data to unauthorized actors.

addresses: CWE-200

Data mining protection mechanisms detect and block unauthorized bulk extraction of sensitive data, directly mitigating exposure to unauthorized actors.

addresses: CWE-200

Literacy training teaches users to recognize and avoid actions that result in unauthorized exposure of sensitive information.

addresses: CWE-200

Retaining and monitoring training records confirms personnel have completed privacy and security awareness training on handling sensitive data, reducing the chance of unauthorized exposure due to lack of knowledge.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

blocks

A.5.10 only requires awareness, a topic-specific acceptable-use policy stating expected behaviours/monitoring, and procedures referencing classification and other controls; per the owner's explicit rule on labelling and similar dependency-style clauses, this does not itself prevent exposure (CWE-200) unless access/DLP/etc. act on it.

blocks

Requiring the return of all physical and electronic assets plus secure deletion of organizational data from personal devices reduces the chance that sensitive information remains accessible to departing personnel.

blocks

A.5.12 only defines and communicates a classification scheme so that protection needs can be understood; per the owner's explicit rule, labeling/classification does not itself prevent exposure and requires other controls (e.g. access enforcement) to act on it.

blocks

By requiring classification labels and metadata on all information assets, the control makes it harder for sensitive data to be inadvertently exposed because downstream systems and users can recognize and enforce handling rules based on those labels.

blocks

Requiring encryption, access controls, and recipient authentication for transfers directly reduces the chance that sensitive data reaches an unauthorized observer.

blocks

Secure delivery, protected storage, and confidentiality of allocation records limit exposure of authentication material to unauthorized observers.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-200, a class-level weakness. Rules are authored against its narrower children: CWE-213, CWE-359, CWE-497, CWE-538, CWE-1295.
  • No fine-grained STIG row for CWE-20, a class-level weakness, and none of its children carries one either.

References