TI-2023-21106 Aliases CVE-2023-40261 GHSA-mj2x-c9j2-vp7g

Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR17, 4.0.0 SR07, 4.1.0 SR04…

MEDIUM 63CWE-665Published 2024-08-08 · Updated 2025-03-13

Key facts

Attack vector: Physical
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR17, 4.0.0 SR07, 4.1.0 SR04, 4.2.0 SR04, and 4.3.0 SR02 fails to validate file attributes during the Pre-Boot Authorization (PBA) process. This can be exploited by a physical attacker who is able to manipulate the contents of the system's hard disk.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00363 30th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:dieboldnixdorf:vynamic_security_suite::::::::	before 3.3.0sr17; 4.0.0 to before 4.0.0sr07; 4.1.0 to before 4.1.0sr04; 4.2.0 to before 4.2.0sr04; 4.3.0 to before 4.3.0sr03	Vulnerable	Diebold Nixdorf

cpe:2.3:a:dieboldnixdorf:vynamic_security_suite:*:*:*:*:*:*:*:* Versions before 3.3.0sr17; 4.0.0 to before 4.0.0sr07; 4.1.0 to before 4.1.0sr04; 4.2.0 to before 4.2.0sr04; 4.3.0 to before 4.3.0sr03 Vulnerable ·Diebold Nixdorf

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-40261
2026-10-03 Alias added: GHSA-mj2x-c9j2-vp7g

References

Exploit 1

https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Matt%20Burch%20-%20Where%E2%80%99s%20the%20Money%20-%20Defeating%20ATM%20Disk%20Encryption-white%20paper.pdf

Advisory 1

https://www.dieboldnixdorf.com/en-us/banking/portfolio/software/security/

TI-2024-31323 Diebold Nixdorf Vynamic Security Suite through 4.3.0 SR01 does not validate file… CVSS 3.1HIGH 8.1
TI-2024-31322 Diebold Nixdorf Vynamic Security Suite through 4.3.0 SR06 contains functionality that… CVSS 3.1HIGH 8.1
TI-2023-09841 Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR4 fails to validate… CVSS 3.1MEDIUM 6.8
TI-2023-13369 Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR15, 4.0.0 SR05, 4.1.0 SR03… CVSS 3.1MEDIUM 6.6
TI-2023-16382 Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR16, 4.0.0 SR06, 4.1.0 SR04… CVSS 3.1HIGH 7.5
TI-2023-09840 Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR10 fails to validate… CVSS 3.1MEDIUM 6.8

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences