CVE-2002-2243: Akfingerd 0.5 and possibly earlier versions only allows one connection at a time and does not time out connect

Routine

MEDIUM 5.0DOWNGRADE

CVE-2002-2243 is a medium-severity flaw (CVSS 5.0) affecting akfingerd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Akfingerd 0.5 and possibly earlier versions only allows one connection at a time and does not time out connections, which allows remote attackers to cause a denial of service (refused connections) by opening a connection and not closing it.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: akfingerd

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:00 UTCUpdated Record last modified

akfingerd akfingerd DOWNGRADE

Affected: 0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.5 (Debian / Ubuntu)

apt-cache madison akfingerd sudo apt install akfingerd=<VERSION_BEFORE_0.5> sudo apt-mark hold akfingerd

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

dnf --showduplicates list akfingerd sudo dnf downgrade akfingerd-<VERSION_BEFORE_0.5> sudo dnf versionlock add akfingerd

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-2002-2243?

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

Is CVE-2002-2243 being exploited?

CVE-2002-2243 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-2002-2243 affect?

CVE-2002-2243 affects akfingerd. Severity is medium (CVSS 5.0). Akfingerd 0.5 and possibly earlier versions only allows one connection at a time and does not time out connections, which allows remote attackers to cause a denial of service (refused connections) by opening a connection and not closing it.

How urgent is CVE-2002-2243?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2002-2274 LOW 2.1 DOWNGRADE akfingerd 0.5 allows local users to read arbitrary files as the akfingerd user (nobody) via a symlink attack o
CVE-2002-2244 LOW 2.1 DOWNGRADE Akfingerd 0.5 and earlier versions allow local users to cause a denial of service (crash) via a .plan with a s

References

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