CVE-2002-1792: Buffer overflow in Fake Identd 0.9 through 1.4 allows remote attackers to execute arbitrary code as root via a

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HIGH 10.0DOWNGRADE

CVE-2002-1792 is a high-severity flaw (CVSS 10.0) affecting fake identd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Fake Identd 0.9 through 1.4 allows remote attackers to execute arbitrary code as root via a long request that is split into multiple packets.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	8.4% (top 5%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: fake identd

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 21:59 UTCUpdated Record last modified

fake identd fake identd DOWNGRADE

Affected: 0.9 · 0.9b · 1.1 · 1.2 · 1.3 · 1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9

1. Check installed version

apt-cache policy fake-identd || rpm -q fake-identd || fake-identd --version

2. No fixed release: DOWNGRADE to a release before 0.9 (Debian / Ubuntu)

apt-cache madison fake-identd sudo apt install fake-identd=<VERSION_BEFORE_0.9> sudo apt-mark hold fake-identd

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

dnf --showduplicates list fake-identd sudo dnf downgrade fake-identd-<VERSION_BEFORE_0.9> sudo dnf versionlock add fake-identd

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Fake Identd 0.9/1.x - Client Query Remote Buffer Overflow

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-2002-1792?

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

Is CVE-2002-1792 being exploited?

CVE-2002-1792 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-2002-1792 affect?

CVE-2002-1792 affects fake identd. Severity is high (CVSS 10.0). Buffer overflow in Fake Identd 0.9 through 1.4 allows remote attackers to execute arbitrary code as root via a long request that is split into multiple packets.

How urgent is CVE-2002-1792?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

References

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