CVE-2023-34995

criticalpriority · track · 39EPSS 0.006 · 49 %ileEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.62% (49th) EPSS
CVSS 9.8 · critical
Is it mine?
4 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

There are no requirements for setting a complex password for PiiGAB M-Bus, which could contribute to a successful brute force attack if the password is inline with recommended password guidelines.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

  • MitigationM-Bus SoftwarePackcisa_csaf_ot

    PiiGAB created updated software to address these issues and encourages users to install the new update on their own gateway. The new software packages can be downloaded directly from the web UI in the gateway and older gateways can download it from Piigab.se or Piigab.com.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · CISA US
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · ics-cert@hq.dhs.gov USexploitability 3.9 · impact 3.6
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-521USCWE-521US
05

affected products (4)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • ICSA-23-187-01PiiGAB M-Bus2023-07-06icsa · cisa_csaf_otUS

    Successful exploitation of these vulnerabilities could crash allow an attacker to inject arbitrary commands, steal passwords, or trick valid users into executing malicious commands.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otnvdNVDCVE.orgMITRE
published 2023-07-07modified 2026-06-17
09

references (7)

External citations — patches, advisories, analysis.

scry

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