CVE-2018-6644: SBLIM Small Footprint CIM Broker (SFCB) 1.4.9 has a null pointer (DoS) vulnerability via a crafted POST reques

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HIGH 7.5REMOTEDOWNGRADE

CVE-2018-6644 is a high-severity flaw (CVSS 7.5) affecting small footprint cim broker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SBLIM Small Footprint CIM Broker (SFCB) 1.4.9 has a null pointer (DoS) vulnerability via a crafted POST request to the /cimom URI.

Why this priority

High 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	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-476
Published	2018-02-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sblim project

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

Am I affected?

Timeline

2018-02-08 23:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

sblim project small footprint cim broker DOWNGRADE

Affected: 1.4.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.9

1. Check installed version

apt-cache policy small-footprint-cim-broker || rpm -q small-footprint-cim-broker || small-footprint-cim-broker --version

2. No fixed release: DOWNGRADE to a release before 1.4.9 (Debian / Ubuntu)

apt-cache madison small-footprint-cim-broker sudo apt install small-footprint-cim-broker=<VERSION_BEFORE_1.4.9> sudo apt-mark hold small-footprint-cim-broker

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

dnf --showduplicates list small-footprint-cim-broker sudo dnf downgrade small-footprint-cim-broker-<VERSION_BEFORE_1.4.9> sudo dnf versionlock add small-footprint-cim-broker

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-2018-6644?

small footprint cim broker: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-6644 being exploited?

CVE-2018-6644 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-2018-6644 affect?

CVE-2018-6644 affects small footprint cim broker. Severity is high (CVSS 7.5). SBLIM Small Footprint CIM Broker (SFCB) 1.4.9 has a null pointer (DoS) vulnerability via a crafted POST request to the /cimom URI.

How urgent is CVE-2018-6644?

Priority 56/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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