CVE-2023-6916

highpriority · track · 0EPSS 0.006 · 47 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.57% (47th) EPSS
CVSS 7.2 · high
Is it mine?
18 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

Audit records for OpenAPI requests may include sensitive information. This could lead to unauthorized accesses and privilege escalation.

01

remediations

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

A vendor fix is available.

  • FixedCMCnozomi_psirt

    Upgrade to v23.4.1 or later.

  • FixedGuardiannozomi_psirt

    Upgrade to v23.4.1 or later.

  • FixedRUGGEDCOM APE1808LNX (6GK6015-0AL20-0GH0)siemens_psirt

    Upgrade Nozomi Guardian / CMC to V23.4.1. Contact customer support to receive patch and update information.

  • FixedRUGGEDCOM APE1808LNX CC (6GK6015-0AL20-0GH1)siemens_psirt

    Upgrade Nozomi Guardian / CMC to V23.4.1. Contact customer support to receive patch and update information.

  • FixedRUGGEDCOM APE1808LNX (6GK6015-0AL20-0GH0)cisa_csaf_ot

    Upgrade Nozomi Guardian / CMC to V23.4.1. Contact customer support to receive patch and update information.

  • FixedRUGGEDCOM APE1808LNX CC (6GK6015-0AL20-0GH1)cisa_csaf_ot

    Upgrade Nozomi Guardian / CMC to V23.4.1. Contact customer support to receive patch and update information.

  • MitigationCMCnozomi_psirt

    Nozomi Networks recommends creating specific users for OpenAPI usage, with only the necessary permissions to access the required data sources. Additionally, it is advised to limit API keys to allowed IP addresses whenever possible. Finally, it is also suggested to regenerate existing API keys periodically and to review sign-ins via API keys in the audit records.

  • MitigationGuardiannozomi_psirt

    Nozomi Networks recommends creating specific users for OpenAPI usage, with only the necessary permissions to access the required data sources. Additionally, it is advised to limit API keys to allowed IP addresses whenever possible. Finally, it is also suggested to regenerate existing API keys periodically and to review sign-ins via API keys in the audit records.

  • MitigationRUGGEDCOM APE1808LNX (6GK6015-0AL20-0GH0)siemens_psirt

    Create specific users for OpenAPI usage, with minimal permissions. Limit API keys to allowed IP addresses. Regenerate existing API keys periodically and to review sign-ins via API keys in the audit records

  • MitigationRUGGEDCOM APE1808LNX CC (6GK6015-0AL20-0GH1)siemens_psirt

    Create specific users for OpenAPI usage, with minimal permissions. Limit API keys to allowed IP addresses. Regenerate existing API keys periodically and to review sign-ins via API keys in the audit records

  • MitigationRUGGEDCOM APE1808LNX (6GK6015-0AL20-0GH0)cisa_csaf_ot

    Create specific users for OpenAPI usage, with minimal permissions. Limit API keys to allowed IP addresses. Regenerate existing API keys periodically and to review sign-ins via API keys in the audit records

  • MitigationRUGGEDCOM APE1808LNX CC (6GK6015-0AL20-0GH1)cisa_csaf_ot

    Create specific users for OpenAPI usage, with minimal permissions. Limit API keys to allowed IP addresses. Regenerate existing API keys periodically and to review sign-ins via API keys in the audit records

02

cvss

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

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.8–7.5

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · Nozomi Networks PSIRT
v3.17.2highAV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · prodsec@nozominetworks.comexploitability 1.2 · impact 5.9
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:Csecondary · CISA US
v4.07.5highCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nsecondary · ENISA EU
v4.07.5highCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:Xsecondary · prodsec@nozominetworks.com
v4.04.8mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)
03

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-201USCWE-201USCWE-522USCWE-522USCWE-522US
05

affected products (18)

Products and version ranges known to be affected.

06

advisories (3)

Vendor and ecosystem advisories describing this.

  • NN-2023:17-01Information disclosure via audit records for OpenAPI requests in Guardian/CMC before 23.4.12024-04-10csaf · nozomi_psirtUS
  • SSA-292022SSA-292022: Vulnerability in Nozomi Guardian/CMC before 23.4.1 on RUGGEDCOM APE1808 devices2024-05-14csaf · siemens_psirtDE

    Nozomi Networks has published information on vulnerabilities in Nozomi Guardian/CMC before 23.4.1. This advisory lists the related Siemens Industrial products affected by these vulnerabilities. Siemens has released a new version for RUGGEDCOM APE1808 and recommends to update to the latest version. Customers are advised to consult and implement the workarounds provided in Nozomi Network's upstream security notifications.

  • ICSA-24-137-11Siemens RUGGEDCOM APE18082024-05-14icsa · cisa_csaf_otUS

    Nozomi Networks has published information on vulnerabilities in Nozomi Guardian/CMC before 23.4.1. This advisory lists the related Siemens Industrial products affected by these vulnerabilities. Siemens has released a new version for RUGGEDCOM APE1808 and recommends to update to the latest version. Customers are advised to consult and implement the workarounds provided in Nozomi Network's upstream security notifications.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otnozomi_psirtsiemens_psirtNVDCVE.orgMITRE
published 2024-04-10modified 2026-06-17
09

references (4)

External citations — patches, advisories, analysis.

scry

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