CVE-2023-35987
PiiGAB M-Bus Use of Hard-coded Credentials
PiiGAB M-Bus contains hard-coded credentials which it uses for authentication.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
PiiGAB M-Bus Use of Hard-coded Credentials
PiiGAB M-Bus contains hard-coded credentials which it uses for authentication.
- Record
CVE-2023-35987- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-798
- Updated
- 2026-11-02
EUVDEUVD-2023-39971
PiiGAB M-Bus contains hard-coded credentials which it uses for authentication.
- Record
EUVD-2023-39971- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pr5p-f98w-w666
PiiGAB M-Bus contains hard-coded credentials which it uses for authentication.
PiiGAB M-Bus contains hard-coded credentials which it uses for authentication.
- Record
GHSA-pr5p-f98w-w666- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-798
- Updated
- 2026-11-02
NVD
PiiGAB M-Bus contains hard-coded credentials which it uses for authentication.
- Record
CVE-2023-35987- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-798
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-35987 is a critical vulnerability (CVSS 9.8) in Piigab M-bus Softwarepack, published July 6, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. No source names a fixed version.