Security Resilience

CVE-2023-5937

Info Disclosure

Published
15 May 2024
Modified
15 April 2026
CVSS Score v4 5.2
Click a component to see what it means
Raw vectorCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0014 3th percentile
Risk Priority 25 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-2023-5937 is a medium-severity Insertion of Sensitive Information into Externally-Accessible File or Directory (CWE-538) vulnerability in Nozominetworks (inferred from references). Its CVSS base score is 5.2 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Direct Volume Access (T1006); ranked at the 3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-16 (Security and Privacy Attributes) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

On Windows systems, the Arc configuration files resulted to be world-readable. This can lead to information disclosure by local attackers, via exfiltration of sensitive data from configuration files.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1006 Direct Volume Access Stealth
Adversaries may directly access a volume to bypass file access controls and file system monitoring.
T1016.001 Internet Connection Discovery Discovery
Adversaries may check for Internet connectivity on compromised systems.
T1018 Remote System Discovery Discovery
Adversaries may attempt to get a listing of other systems by IP address, hostname, or other logical identifier on a network that may be used for Lateral Movement from the current system.
T1020.001 Traffic Duplication Exfiltration
Adversaries may leverage traffic mirroring in order to automate data exfiltration over compromised infrastructure.
T1021 Remote Services Lateral Movement
Adversaries may use [Valid Accounts](https://attack.
T1025 Data from Removable Media Collection
Adversaries may search connected removable media on computers they have compromised to find files of interest.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-31954Shared CWE-538
CVE-2026-33705Shared CWE-538
CVE-2025-27150Shared CWE-538
CVE-2025-31550Shared CWE-538
CVE-2025-11891Shared CWE-538
CVE-2025-36372Shared CWE-538
CVE-2023-4595Shared CWE-538
CVE-2025-57734Shared CWE-538
CVE-2025-61138Shared CWE-538
CVE-2024-22045Shared CWE-538

Affected Assets

Nozominetworks
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 2 hardening rules · 2 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V14.1.2
  • V14.2.8

Mitigating Controls (NIST 800-53 r5) AI

Enforces per-object authorizations so that even if a file or directory is reachable, the sensitive contents remain inaccessible to unauthorized actors.

Associates sensitivity labels with data objects so that subsequent storage or flow decisions can enforce that only appropriately protected files or directories receive the data.

Controls information flows between objects, directly stopping sensitive data from being written into locations whose ACLs or visibility would expose it.

Requires confidentiality protection of information at rest, which can be implemented by restricting storage locations or encrypting contents that would otherwise be placed in externally visible files.

Mitigating Controls (NIST CSF 2.0) AI

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

PR.AA-05 partial match
blocks

Least-privilege file and directory permissions directly prevent unauthorized actors from reading sensitive data placed in accessible locations.

PR.DS-01 partial match
blocks

Protecting data-at-rest encompasses file-level access controls and encryption that stop exposure of sensitive information in externally reachable paths.

PR.PS-01 partial match
blocks

Hardened configuration baselines and ongoing config management reduce the chance that sensitive data is written to world-readable files or directories.

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.

A.8.11 Data masking partial match
blocks

By ensuring that only the minimum necessary data is present in files or directories that may be reachable by external parties, the control lowers the impact of any subsequent exposure.

removes

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (higher-evidence rows only; rows rated `none` are excluded).

Oracle Linux 8 (1 rule)
  • V-248579 OL 8 must restrict access to the kernel message buffer. blocks CWE-538
RHEL 8 (1 rule)
  • V-230269 RHEL 8 must restrict access to the kernel message buffer. blocks CWE-538

References