CVE-2023-49900: An unauthenticated remote attacker is able to perform remote code execution due to incorrectly sanitized user

This month

CRITICAL 9.8REMOTE

CVE-2023-49900 is a critical-severity flaw (CVSS 9.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An unauthenticated remote attacker is able to perform remote code execution due to incorrectly sanitized user input in the SetParameter command.

Why this priority

Critical severity
CISA SSVC: automatable with total technical impact
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	1.0% (top 39%)
CISA exploited list	No
Weakness	CWE-78
Published	2026-07-16
Last modified	2026-09-26

Publisher (CNA): CERT VDE

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

Timeline

2026-07-16 11:16 UTCPublished CVE record published
2026-09-26 23:10 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · python3.11 · FIXED · 3.11.18-1.fc46 · FEDORA-2026-cc775894f4 · source

sudo dnf upgrade --advisory=FEDORA-2026-cc775894f4

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-2023-49900?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2023-49900 being exploited?

CVE-2023-49900 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-2023-49900 affect?

CVE-2023-49900 affects affected software. Severity is critical (CVSS 9.8). An unauthenticated remote attacker is able to perform remote code execution due to incorrectly sanitized user input in the SetParameter command.

How urgent is CVE-2023-49900?

Priority 58/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

References

← Back to latest CVEs