CVE-2023-40261: 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

Routine

MEDIUM 6.8UPGRADE

CVE-2023-40261 is a medium-severity flaw (CVSS 6.8) affecting vynamic security suite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-665
Published	2024-08-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dieboldnixdorf

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-08-08 18:15 UTCPublished CVE record published
2026-06-17 06:16 UTCUpdated Record last modified

dieboldnixdorf vynamic security suite UPGRADE

Affected: < 3.3.0sr17 · >= 4.0.0 and < 4.0.0sr07 · >= 4.1.0 and < 4.1.0sr04 · >= 4.2.0 and < 4.2.0sr04 · >= 4.3.0 and < 4.3.0sr03

Fixed in: 3.3.0sr17, 4.0.0sr07, 4.1.0sr04, 4.2.0sr04, 4.3.0sr03

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy vynamic-security-suite || rpm -q vynamic-security-suite || vynamic-security-suite --version

2. UPGRADE to 3.3.0sr17 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade vynamic-security-suite

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vynamic-security-suite

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison vynamic-security-suite sudo apt install vynamic-security-suite=<VERSION_BEFORE_4.0.0> sudo apt-mark hold vynamic-security-suite

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list vynamic-security-suite sudo dnf downgrade vynamic-security-suite-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add vynamic-security-suite

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-40261?

vynamic security suite: upgrade to 3.3.0sr17, 4.0.0sr07, 4.1.0sr04, 4.2.0sr04, 4.3.0sr03. Exact commands for each OS are on this page.

Is CVE-2023-40261 being exploited?

CVE-2023-40261 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-40261 affect?

CVE-2023-40261 affects vynamic security suite. Severity is medium (CVSS 6.8). 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 attack

How urgent is CVE-2023-40261?

Priority 36/100. Public exploit reference

Related CVEs

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CVE-2024-46916 HIGH 8.1 UPGRADE Diebold Nixdorf Vynamic Security Suite through 4.3.0 SR06 contains functionality that allows the removal of cr
CVE-2023-33206 MEDIUM 6.8 UPGRADE Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR16, 4.0.0 SR06, 4.1.0 SR04, 4.2.0 SR03, and 4.3.0
CVE-2023-28865 MEDIUM 6.6 UPGRADE Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR15, 4.0.0 SR05, 4.1.0 SR03, and 4.2.0 SR02 fails t
CVE-2023-24064 MEDIUM 6.8 UPGRADE Diebold Nixdorf Vynamic Security Suite (VSS) before 3.3.0 SR4 fails to validate /etc/initab during the Pre-Boo

References

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