CVE-2023-3634

highpriority · track · 0EPSS 0.006 · 51 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.64% (51st) EPSS
CVSS 8.8 · high
Is it mine?
72 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-26

In products of the MSE6 product-family by Festo a remote authenticated, low privileged attacker could use functions of undocumented test mode which could lead to a complete loss of confidentiality, integrity and availability.

01

remediations

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

A vendor fix is available.

  • Fixedfesto_psirt

    Update of user documentation in next product version.

  • Fixedcisa_csaf_ot

    Update of user documentation in next product version.

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 · 8.1–9.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US
v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · info@cert.vde.comexploitability 2.8 · impact 5.9
v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · Festo PSIRT DE
v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/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: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1242USCWE-912USCWE-912USCWE-912US
05

affected products (72)

Products and version ranges known to be affected.

showing 20 of 72
06

advisories (2)

Vendor and ecosystem advisories describing this.

  • FSA-202304Festo: MSE6-C2M/D2M/E2M Incomplete User Documentation of Remote Accessible Functions2023-09-05csaf · festo_psirtDE

    Incomplete user documentation of undocumented, authenticated test mode and further remote accessible functions. The supported features may be covered only partly by the corresponding user documentation. Festo developed the products according to the respective state of the art. As a result, the protocols used no longer fully meet today's security requirements. The products are designed and developed for use in sealed-off (industrial) networks. If the network is not adequately sealed off, unauthorized access to the product can cause damage or malfunctions, particularly Denial of Service (DoS) or loss of integrity.

  • ICSA-25-324-04Festo MSE6-C2M/D2M/E2M2023-09-05icsa · cisa_csaf_otUS

    Incomplete user documentation of undocumented, authenticated test mode and further remote accessible functions. The supported features may be covered only partly by the corresponding user documentation. Festo developed the products according to the respective state of the art. As a result, the protocols used no longer fully meet today's security requirements. The products are designed and developed for use in sealed-off (industrial) networks. If the network is not adequately sealed off, unauthorized access to the product can cause damage or malfunctions, particularly Denial of Service (DoS) or loss of integrity.

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otfesto_psirtNVDCVE.orgMITRE
published 2026-04-16modified 2026-06-17
09

references (5)

External citations — patches, advisories, analysis.

scry

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