CVE-2021-33949: An issue in FeMiner WMS v1.1 allows attackers to execute arbitrary code via the filename parameter and the exe

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-33949 is a critical-severity flaw (CVSS 9.8) affecting wms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in FeMiner WMS v1.1 allows attackers to execute arbitrary code via the filename parameter and the exec function.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

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 36%)
CISA exploited list	No
Weakness	CWE-94
Published	2023-02-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: wms project

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

Am I affected?

Timeline

2023-02-17 18:15 UTCPublished CVE record published
2026-06-17 03:55 UTCUpdated Record last modified

wms project wms DOWNGRADE

Affected: 1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1 (Debian / Ubuntu)

apt-cache madison wms sudo apt install wms=<VERSION_BEFORE_1.1> sudo apt-mark hold wms

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list wms sudo dnf downgrade wms-<VERSION_BEFORE_1.1> sudo dnf versionlock add wms

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-2021-33949?

wms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-33949 being exploited?

CVE-2021-33949 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-2021-33949 affect?

CVE-2021-33949 affects wms. Severity is critical (CVSS 9.8). An issue in FeMiner WMS v1.1 allows attackers to execute arbitrary code via the filename parameter and the exec function.

How urgent is CVE-2021-33949?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-47635 CRITICAL 9.8 UPGRADE Wildix WMS 6 before 6.02.20221216, WMS 5 before 5.04.20221214, and WMS4 before 4.04.45396.23 allows Server-sid

References

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