CVE-2025-10220: Use of Unmaintained Third Party Components (CWE-1104) in the NuGet dependency components in AxxonSoft Axxon On

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CRITICAL 9.8REMOTEUPGRADE

CVE-2025-10220 is a critical-severity flaw (CVSS 9.8) affecting axxon one. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Use of Unmaintained Third Party Components (CWE-1104) in the NuGet dependency components in AxxonSoft Axxon One VMS 2.0.0 through 2.0.4 on Windows allows a remote attacker to execute arbitrary code or bypass security features via exploitation of vulnerable third-party packages such as Google.Protobuf, DynamicData, System.Runtime.CompilerServices.Unsafe, and others.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-1104
Published	2025-09-10
Last modified	2026-09-26

Publisher (CNA): AxxonSoft · Vendor: axxonsoft

Last updated 2026-09-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-09-10 13:15 UTCPublished CVE record published
2026-09-26 00:10 UTCUpdated Record last modified

axxonsoft axxon one UPGRADE

Affected: >= 2.0.0 and <= 2.0.4

Fixed in: newer than 2.0.4

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy axxon-one || rpm -q axxon-one || axxon-one --version

2. UPGRADE to newer than 2.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade axxon-one

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade axxon-one

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 2.0.0 (Debian / Ubuntu)

apt-cache madison axxon-one sudo apt install axxon-one=<VERSION_BEFORE_2.0.0> sudo apt-mark hold axxon-one

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

dnf --showduplicates list axxon-one sudo dnf downgrade axxon-one-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add axxon-one

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-2025-10220?

axxon one: upgrade to newer than 2.0.4. Exact commands for each OS are on this page.

Is CVE-2025-10220 being exploited?

CVE-2025-10220 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-2025-10220 affect?

CVE-2025-10220 affects axxon one. Severity is critical (CVSS 9.8). Use of Unmaintained Third Party Components (CWE-1104) in the NuGet dependency components in AxxonSoft Axxon One VMS 2.0.0 through 2.0.4 on Windows allows a remote attacker to execute arbitrary code or bypass security features via exploitati

How urgent is CVE-2025-10220?

Priority 53/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities

Related CVEs

CVE-2025-10225 HIGH 7.5 UPGRADE Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) in the OpenSSL-based session
CVE-2025-10223 MEDIUM 5.4 UPGRADE Insufficient Session Expiration (CWE-613) in the Web Admin Panel in AxxonSoft Axxon One (C-Werk) prior to 2.0.
CVE-2025-10221 MEDIUM 5.5 UPGRADE Insertion of Sensitive Information into Log File (CWE-532) in the ARP Agent component in AxxonSoft Axxon One /
CVE-2025-10227 MEDIUM 4.6 UPGRADE Missing Encryption of Sensitive Data (CWE-311) in the Object Archive component in AxxonSoft Axxon One (C-Werk)
CVE-2025-10222 LOW 3.3 UPGRADE Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) in the diagnostic dump component in Axxon

References

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