CVE-2023-37227: Loftware Spectrum before 4.6 HF13 Deserializes Untrusted Data.

Q: How do I fix CVE-2023-37227?

spectrum: upgrade to 4.6. Exact commands for each OS are on this page.

Q: Is CVE-2023-37227 being exploited?

CVE-2023-37227 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-37227 affect?

CVE-2023-37227 affects spectrum. Severity is critical (CVSS 9.8). Loftware Spectrum before 4.6 HF13 Deserializes Untrusted Data.

Q: How urgent is CVE-2023-37227?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-37227 is a critical-severity flaw (CVSS 9.8) affecting spectrum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Loftware Spectrum before 4.6 HF13 Deserializes Untrusted Data.

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	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-502
Published	2024-09-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: loftware

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

Am I affected?

Timeline

2024-09-10 14:15 UTCPublished CVE record published
2026-06-17 06:07 UTCUpdated Record last modified

loftware spectrum UPGRADE

Affected: < 4.6 · 4.6 · 4.6 feature_pack6 · 4.6 hotfix1 · 4.6 hotfix10 · 4.6 hotfix12 · 4.6 hotfix2 · 4.6 hotfix3

Fixed in: 4.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy spectrum || rpm -q spectrum || spectrum --version

2. UPGRADE to 4.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade spectrum

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade spectrum

Note

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

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-2023-37227?

spectrum: upgrade to 4.6. Exact commands for each OS are on this page.

Is CVE-2023-37227 being exploited?

CVE-2023-37227 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-2023-37227 affect?

CVE-2023-37227 affects spectrum. Severity is critical (CVSS 9.8). Loftware Spectrum before 4.6 HF13 Deserializes Untrusted Data.

How urgent is CVE-2023-37227?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-37234 CRITICAL 9.8 UPGRADE Loftware Spectrum through 4.6 has unprotected JMX Registry.
CVE-2023-37233 HIGH 8.8 UPGRADE Loftware Spectrum before 4.6 HF14 allows authenticated XXE attacks.
CVE-2023-37232 HIGH 7.5 UPGRADE Loftware Spectrum through 4.6 exposes Sensitive Information (Logs) to an Unauthorized Actor.
CVE-2023-37231 CRITICAL 9.8 UPGRADE Loftware Spectrum before 4.6 HF14 uses a Hard-coded Password.
CVE-2023-37230 HIGH 8.8 UPGRADE Loftware Spectrum (testDeviceConnection) before 5.1 allows SSRF.

References

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