CVE-2023-40261

Exp

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.

Published: 2024-08-08 Last update: 2025-03-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-40261 is rated Exploit Available (56.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.18%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2023-40261

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-40261

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.10% 0.18% +0.07%
2 2025-11-18 0.25% 0.10% -0.15%
3 2025-09-16 — 0.25% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-40261

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 3.1 MEDIUM
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.9 5.9 [email protected]
4.6 3.1 MEDIUM
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 0.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-40261

Affected software / configurations for CVE-2023-40261

Vendor Product Version Raw CPE
dieboldnixdorf vynamic_security_suite < 3.3.0sr17 cpe:2.3:a:dieboldnixdorf:vynamic_security_suite:*:*:*:*:*:*:*:*
dieboldnixdorf vynamic_security_suite >= 4.0.0, < 4.0.0sr07 cpe:2.3:a:dieboldnixdorf:vynamic_security_suite:*:*:*:*:*:*:*:*
dieboldnixdorf vynamic_security_suite >= 4.1.0, < 4.1.0sr04 cpe:2.3:a:dieboldnixdorf:vynamic_security_suite:*:*:*:*:*:*:*:*
dieboldnixdorf vynamic_security_suite >= 4.2.0, < 4.2.0sr04 cpe:2.3:a:dieboldnixdorf:vynamic_security_suite:*:*:*:*:*:*:*:*
dieboldnixdorf vynamic_security_suite >= 4.3.0, < 4.3.0sr03 cpe:2.3:a:dieboldnixdorf:vynamic_security_suite:*:*:*:*:*:*:*:*

References for CVE-2023-40261

cvelogic Threat Intelligence