CVE-2023-48967: Ssolon <= 2.6.0 and <=2.5.12 is vulnerable to Deserialization of Untrusted Data.

Q: How do I fix CVE-2023-48967?

solon: upgrade to newer than 2.5.12. Exact commands for each OS are on this page.

Q: Is CVE-2023-48967 being exploited?

CVE-2023-48967 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-2023-48967 affect?

CVE-2023-48967 affects solon. Severity is critical (CVSS 9.8). Ssolon <= 2.6.0 and <=2.5.12 is vulnerable to Deserialization of Untrusted Data.

Q: How urgent is CVE-2023-48967?

Priority 59/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-48967 is a critical-severity flaw (CVSS 9.8) affecting solon. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Ssolon <= 2.6.0 and <=2.5.12 is vulnerable to Deserialization of Untrusted Data.

Why this priority

Critical severity
Public exploit reference
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	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-502
Published	2023-12-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: noear

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

Am I affected?

Timeline

2023-12-04 17:15 UTCPublished CVE record published
2026-06-17 06:35 UTCUpdated Record last modified

noear solon UPGRADE

Affected: <= 2.5.12 · 2.6.0

Fixed in: newer than 2.5.12

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.5.12 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade solon

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-2023-48967?

solon: upgrade to newer than 2.5.12. Exact commands for each OS are on this page.

Is CVE-2023-48967 being exploited?

CVE-2023-48967 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-2023-48967 affect?

CVE-2023-48967 affects solon. Severity is critical (CVSS 9.8). Ssolon <= 2.6.0 and <=2.5.12 is vulnerable to Deserialization of Untrusted Data.

How urgent is CVE-2023-48967?

Priority 59/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

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References

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