Cyber Resilience

CVE-2023-35765

Piigab M-Bus 900S Firmware

Published
07 July 2023
Modified
21 November 2024
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0051 41th percentile
Risk Priority 50 floored blend · peak EPSS

Summary

CVE-2023-35765 is a medium-severity Plaintext Storage of a Password (CWE-256) vulnerability in Piigab M-Bus 900S Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Credentials In Files (T1552.001); ranked at the 41th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability Data

PiiGAB M-Bus stores credentials in a plaintext file, which could allow a low-level user to gain admin credentials.

CWE(s)
CWE-256

Related Threats

MITRE ATT&CK Enterprise Techniques

T1552.001 Credentials In Files Credential Access
Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials.
attack.mitre.org →
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-35987Same product: Piigab M-Bus 900S
CVE-2023-34995Same product: Piigab M-Bus 900S
CVE-2023-33868Same product: Piigab M-Bus 900S
CVE-2023-34433Same product: Piigab M-Bus 900S
CVE-2023-32652Same product: Piigab M-Bus 900S
CVE-2023-31277Same product: Piigab M-Bus 900S
CVE-2023-36859Same product: Piigab M-Bus 900S
CVE-2023-35120Same product: Piigab M-Bus 900S
CVE-2024-29978Shared CWE-256
CVE-2024-55026Shared CWE-256

Affected Assets

piigab
m-bus 900s firmware
all versions

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.

SC-28 Protection of Information at Rest
addresses: CWE-256

Protection of passwords and credentials at rest forces encryption or equivalent controls instead of plaintext storage.

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.DS-01 mostly match
prevents

Encryption and hashing of data-at-rest directly prevent plaintext password storage in files.

PR.AA-01 partial match
prevents

Credential management practices normally include secure storage requirements for passwords.

PR.DS-10 partial match
prevents

Protecting data-in-use can limit exposure of passwords held in memory.

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.5.17 Authentication information full match
degrades

Directly requires secure handling and protection of authentication information, preventing plaintext password storage.

A.8.24 Use of cryptography mostly match
prevents

Requires use of cryptography to protect sensitive data such as passwords at rest.

A.8.28 Secure coding partial match
prevents

Secure coding practices would prevent developers from writing code that stores passwords in plaintext.

A.8.5 Secure authentication partial match
degrades

Mandates secure authentication mechanisms that inherently require hashed or encrypted credentials rather than plaintext.

A.8.10 Information deletion none match
mitigates

Requires secure deletion of sensitive information, indirectly reducing exposure of stored plaintext passwords.

References