CVE-2009-1440: Incomplete blacklist vulnerability in DownloadListCtrl.cpp in amule 2.2.4 allows remote attackers to conduct a

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MEDIUM 6.8DOWNGRADE

CVE-2009-1440 is a medium-severity flaw (CVSS 6.8) affecting amule. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incomplete blacklist vulnerability in DownloadListCtrl.cpp in amule 2.2.4 allows remote attackers to conduct argument injection attacks into a command for mplayer via a crafted filename.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Published	2009-04-27
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: amule

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2009-04-27 18:00 UTCPublished CVE record published
2026-06-16 23:07 UTCUpdated Record last modified

amule amule DOWNGRADE

Affected: 2.2.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.2.4 (Debian / Ubuntu)

apt-cache madison amule sudo apt install amule=<VERSION_BEFORE_2.2.4> sudo apt-mark hold amule

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

dnf --showduplicates list amule sudo dnf downgrade amule-<VERSION_BEFORE_2.2.4> sudo dnf versionlock add amule

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-2009-1440?

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

Is CVE-2009-1440 being exploited?

CVE-2009-1440 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-2009-1440 affect?

CVE-2009-1440 affects amule. Severity is medium (CVSS 6.8). Incomplete blacklist vulnerability in DownloadListCtrl.cpp in amule 2.2.4 allows remote attackers to conduct argument injection attacks into a command for mplayer via a crafted filename.

How urgent is CVE-2009-1440?

Priority 48/100. Public exploit reference

References

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