CVE-2020-24551: IProom MMC+ Server login page does not validate specific parameters properly

Routine

MEDIUM 6.1DOWNGRADE

CVE-2020-24551 is a medium-severity flaw (CVSS 6.1) affecting mmc\+. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IProom MMC+ Server login page does not validate specific parameters properly. Attackers can use the vulnerability to redirect to any malicious site and steal the victim's login credentials.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 49%)
CISA exploited list	No
Weakness	CWE-601
Published	2020-10-14
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: iproom

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

Am I affected?

Timeline

2020-10-14 13:15 UTCPublished CVE record published
2026-06-17 03:05 UTCUpdated Record last modified

iproom mmc\+ DOWNGRADE

Affected: 3.2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2.2

1. Check installed version

apt-cache policy mmc+ || rpm -q mmc+ || mmc+ --version

2. No fixed release: DOWNGRADE to a release before 3.2.2 (Debian / Ubuntu)

apt-cache madison mmc+ sudo apt install mmc+=<VERSION_BEFORE_3.2.2> sudo apt-mark hold mmc+

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

dnf --showduplicates list mmc+ sudo dnf downgrade mmc+-<VERSION_BEFORE_3.2.2> sudo dnf versionlock add mmc+

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-2020-24551?

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

Is CVE-2020-24551 being exploited?

CVE-2020-24551 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-2020-24551 affect?

CVE-2020-24551 affects mmc\+. Severity is medium (CVSS 6.1). IProom MMC+ Server login page does not validate specific parameters properly. Attackers can use the vulnerability to redirect to any malicious site and steal the victim's login credentials.

How urgent is CVE-2020-24551?

Priority 34/100. No elevated risk signals yet.

References

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